[HN Gopher] This Website is hosted on an Casio fx-9750GII Calcul...
___________________________________________________________________
This Website is hosted on an Casio fx-9750GII Calculator
Author : mritzmann
Score : 824 points
Date : 2021-07-12 19:34 UTC (1 days ago)
(HTM) web link (fxip.as203478.net)
(TXT) w3m dump (fxip.as203478.net)
| the_third_wave wrote:
| Last year I bought I used TI for my daughter who needed it for
| school. I got her the oldest version, the one which takes AAA
| batteries and communicates with the outside world through a
| serial link. A project like this brings to mind the possibility
| of stuffing a Raspberry Pi Zero in the battery compartment,
| hooking it up to the school WiFi, using a terminal app on the
| calculator to communicate with the Pi and in that way voiding the
| whole reason of using these ancient beasts in the first place. I
| won't do this of course - she's there to learn other things
| besides refining the art of cheating [1] - but it would be a
| tempting hack. An even more elaborate hack would be to replace
| the guts of the thing with a Zero running a TI emulator as well
| as some more useful stuff like ssh. The possibilities are
| endless... so endless in fact that I'm fairly certain this has
| been done already, somewhere.
|
| [1] which in my days at school consisted of writing the
| translated works of Homer on a 10x10cm piece of paper, a good way
| to a) learn to write incredibly small and b) get those words to
| stick inside your head long enough so you don't actually need to
| consult the cheat "sheet" during the test.
| tyingq wrote:
| Here someone figured out how to drive the LCD screen from one.
| https://ripitapart.com/2013/03/02/making-use-of-an-old-ti-83...
| herbst wrote:
| I cheatet so much with my TI. In every class we were allowed to
| use a calculator I would literally code everything relevant for
| the test into this small thingy. I still think I better
| memorized some of the things as my class mates.
|
| Also I loved how it doesn't really communicate except with a
| cable no one had. So nobody expected me to share my 'cheats'
| Spare_account wrote:
| You accidentally prepared for the test while thinking that
| you were cheating.
| herbst wrote:
| I did both I guess. And because I could not share it,
| teachers never bothered.
| Spare_account wrote:
| This gives me food for thought. I have young children,
| all under 10. The challenge is learning how to inspire
| them; you found a crutch that made learning less of a
| chore: converting the syllabus into chunks of code.
|
| I can already see that the my two eldest will both need
| very different answers, but if I can figure out what
| theirs is, I can hopefully help them focus where my
| childhood mind would wander during study sessions.
| herbst wrote:
| You sound like a good parent. For me finding these small
| ways to cope with the boring reality of schooling really
| made the difference
| shakna wrote:
| The ESP-01 is smaller, cheaper, less battery heavy, and already
| speaks serial so it wouldn't be hard to integrate it, just for
| the WiFi... And at a quick look there's a bunch of TI<->Arduino
| stuff out there in the wild it should be easy.
| the_third_wave wrote:
| There are many ways to flay this hog, this is more of a
| thought experiment than a recipe for a TI-CH337. The ultimate
| hack would be to use a more modern version (with "high-res"
| screen) and replace/amend the guts with something which
| emulates the calculator - wabbitemu seems to work just fine
| [1] - but can also function in other ways. Add some key
| combination to switch functions and you have a mean lean
| cheatin' machine.
|
| [1] http://wabbitemu.org/
| danmur wrote:
| My school let you have two calculators so you could have notes
| on one of them and use the other. I don't really understand
| why, I'd rather just have paper notes. Fun things to play with
| though, the HP38G's we had had a nifty infrared communication
| thing so you could trade stuff with other people.
| lifeisstillgood wrote:
| "I cheated in the finals of my metaphysics exam. I looked into
| the soul of the boy sitting next to me"
|
| -- Woody Allen
|
| Just reminded me.
| DrSiemer wrote:
| One of my proudest cheats was cramming the keywords of an
| entire presentation in French on a tiny round piece of paper,
| stuck to the glass of my wrist watch, so I could literally
| cheat while the whole class and teacher were watching me.
| Somehow I actually got away with multiple glances, only
| receiving a single remark about "being a bit too focused on the
| duration of my presentation".
|
| My cousin, who has always did have good entrepreneurial
| instincts, actually managed to turn a decent profit selling
| highly detailed printouts of micro cheatsheets at school.
| tener wrote:
| How is having the transcript of the presentation cheating and
| not just being prepared?
| ben_w wrote:
| In the same way that my ability to use WolframAlpha to
| answer physics questions in no way qualifies me to say
| "black holes don't sound like they could work, surely the
| way the in-falling particles get an increasingly well
| defined velocity as they reach the event horizon causes
| their position to become increasingly undefined until they
| are almost certainly nowhere near the black hole?", which
| is the kind of thing I tend to say because I don't have a
| physics degree, and given how physicists generally respond
| when I say stuff like this there's a 5% chance I've said
| something interesting and a 95% chance I'm as wrong as 90s
| Hollywood script writers were about computers.
| cgio wrote:
| I searched WolframAalpha and I can tell you you are
| partially right. The universe macroscopically is flat so
| they remain in proximity to the black hole on the x,y
| dimensions but move arbitrarily far on the z dimension,
| which is how they bend spacetime and why they attract
| everything around them like if they have gravity. :-)
| thewakalix wrote:
| That's interesting but I don't understand how it's at all
| similar.
| ben_w wrote:
| With sufficient preparation I could pass any physics test
| without actually understanding physics. A Chinese room
| within the mind, if you prefer a philosophy reference.
|
| Thinking about it, I really should've gone with that
| analogy first -- it keeps this in the category of
| languages.
| IIAOPSW wrote:
| I know you pulled it out of your ass, but your thought on
| the uncertainty principle and black holes is actually
| intriguing. A wave function that is fully localized in
| momentum space (as in has one definite momentum) has to
| be maximally spread in position space (as in its possible
| positions are diluted to the point of being everywhere so
| the odds of observing it anywhere are effectively zero).
|
| IIRC some quantum properties like uncertainty have funny
| ways of being preserved in relativity. They pop out of
| the equations as unexpectedly nice coincidences, but they
| feel to good to be true. Like they clearly hint at some
| profound truth, but its on the tip of everyone's tongue
| yet no one can grab it.
|
| I vaguely recall certain types of entanglement change in
| an interesting way under the Lorentz transform (don't
| hold me to that).
| [deleted]
| draugadrotten wrote:
| It's because school is preparing students for life, where
| it would be outrageous to have written notes while
| presenting or speaking. What's next, someone else writing
| the words for you?
| tener wrote:
| How exactly is it outrageous? You are there to deliver
| the message in a meaningful way, not to recite such
| message from memory. This is no theater or the cinema
| where you are playing a role and must be entirely
| authentic as a result.
|
| Sure, literally reading entire thing from your notes in
| front of your audience is bad form as it fails to build
| the captivating presentation. It is just distracting for
| those listening.
|
| But damn if this cannot ever work for the online
| presentation where the speaker isn't visible.
| Paraesthetic wrote:
| Whats next, paying someone in a poorer country to write
| your things for you while you 'work from home'
| xnzakg wrote:
| Yeeeah that's already being done for a a bunch of IT
| courses. Check out some of those "freelance work" sites,
| it's fairly obvious a bunch of those are someone's
| homework...
| grishka wrote:
| It's because school is preparing students for life, where
| they would never have any chance to look anything up, and
| could thus only use their own memory.
|
| And that "you won't always have a calculator with you"
| thing math teachers loved so much? Yeah that didn't age
| well.
| db48x wrote:
| Reminds me of when I was in high school. I found a terminal
| emulator for my HP48G, built a serial cable to connect it to my
| 2400 baud modem. I was able to use it to check my email in
| physics class. Of course I was only able to do that once; the
| modem was three or four times the size of the calculator with
| lots of blinkenlights on it, and trailing a phone cable half
| way across the classroom isn't very subtle.
| IIAOPSW wrote:
| There's enough hacks you can do on the 83/84 without hardware
| gutting tricks. Even in plain old TI Basic. You can easily
| automate most of a HS curriculum and make an unbeatable tic tac
| toe program, no internet needed. Its honestly the first coding
| experience I ever had.
| ornornor wrote:
| One of my university teachers allowed us a double sided letter
| sized piece of paper during the exam and we could put whatever
| we felt like on it.
|
| This was brilliant because 1. In real life, you don't memorize
| random facts. That's what reference books and the internet is
| for. 2. Making the cheat sheet actually forced us to understand
| the material so they we could sum it up and for it on the page.
| By the time we were done writing the sheet, we had memorized
| most of it anyway.
|
| Yet another demonstration how school is completely out of touch
| with the jobs they're claiming to be preparing you for.
| grishka wrote:
| A university teacher allowed us to use everything during the
| exam, including a laptop with an internet connection. The
| only rule was that you weren't allowed to use any
| communication with other people, like messaging someone or
| asking questions on forums. Needless to say, everyone passed
| that exam.
|
| For myself, the most-hated part of every exam session was
| having to memorize everything. That's what made me fail every
| single exam I've ever failed. I just can't bring myself to
| stuff information into my head and then give it back later.
| It's not a storage device. Yet most other teachers insisted
| that I need to do everything from memory. 95% of my school
| and university "education" was to memorize something, then
| recite it, and then forget it forever.
| professoretc wrote:
| I've done open-everything exams (just no collaboration) and
| my experience was that it didn't change the _mean_ grade,
| but it did increase the standard deviation. Students who
| were already mostly on top of the material could look
| things up and double-check their work, so their scores
| improved. Meanwhile, students who didn 't really know what
| they needed to spent the whole time trying to find "the
| answer" in the book or online (and that's not the way
| programming tests work!), so in the end they either left
| the answer blank or put something totally nonsensical,
| copy-pasted off the internet. In a closed-book test, they
| would have at least _tried_ to figure it out on their own,
| and maybe gotten a few partial-credit points.
| fatnoah wrote:
| I had a couple teachers that allowed the cheat sheet, and it
| worked so well that I made them for every test, whether I
| could actually use them on the test or not. As you noted,
| it's such a great forcing function to identify and understand
| the most important bits.
| pmorici wrote:
| I had an Econ teacher that did something similar but it was a
| note card. Thing was she reused the same bank of questions
| every semester and provided a study packet of sample
| questions that was a super set of the questions on the final.
| Some kids got wind of this and encoded the answers to the
| study packet on the index card. They were bizarrely accused
| of cheating.
| jrmann100 wrote:
| I found it a lot of fun to interface with the TI calculators
| directly using the wonderful ArTICL Arduino library[0]. You can
| cobble together a link cable to imitate another calculator and
| hook it up to your microcontroller of choice.
|
| I enjoyed making a QWERTY keyboard and news app over WiFi using
| the tiny ESP-01 (as, coincidentally, @shakna suggested in this
| thread).
|
| 0: https://github.com/KermMartian/ArTICL
| punnerud wrote:
| And if IT use the Cisco management console, they get the
| location down to 3-7m diameter of every WiFi, Bluetooth,
| Microwave ++ that is using the same band as WiFi.
|
| I was earlier in a startup that made an indoor navigation map,
| where you could get the blue dot without installing anything,
| by using this Cisco feature: https://use.mazemap.com
| TedDoesntTalk wrote:
| What is maze map showing me? What is this?
| javindo wrote:
| Feels incredibly strange that anyone can publicly view all
| these office layouts, down to very specific
| room/corridor/stair layouts, occupancy status, of random
| private office and university buildings...
| fouc wrote:
| Now I want to see a website hosted by my favorite graphing
| calculator, the one that comes with the best UX for operating on
| numbers - RPN (Reverse Polish Notation). HP-48G
| ronyeh wrote:
| Thanks for reminding me that I used to play Columns and other
| games on my HP during math class.
| halotrope wrote:
| Correction: was hosted on an Casio fx-9750GII Calculator.
| nikeee wrote:
| They also built a serial adapter that connects to a dial-up
| modem: https://youtu.be/epFX8K0dhdY
|
| And an IRC client: https://youtu.be/afkrucsMMrc
| blhack wrote:
| How long until this is available as an AWS image?
| normac2 wrote:
| Notice: this is written in fairly nicely-written C, not ASM with
| demoscene level micro-optimizations, like you might expect.
|
| Goes to show how much you can get out of hardware just by writing
| code sensibly in a native language (and native libs/tools, of
| course).
| mvanaltvorst wrote:
| > Goes to show how much you can get out of hardware just by
| writing code sensibly in a native language (and native
| libs/tools, of course).
|
| Personally, I find this a far less impressive demo of the
| SuperH SH-4 CPU than, say, Doom running on a graphical
| calculator. A http server (not https) simply opens sockets,
| writes a string, and closes the socket, a task which is usually
| purely I/O bound. Implement something basic like HTTPS
| (introduced in 1994) and watch this CPU grind to a halt.
| Uberphallus wrote:
| I agree with the feeling, it's not really that impressive,
| but the HTTPS mention isn't accurate. Performance would be
| certainly lower, but remember the SH-4 was in the Dreamcast.
|
| You can buy some niche boards[0] with SH-4, and I assure you,
| they can run Debian and they do SSL just fine.
|
| [0]https://www.apnet.co.jp/product/superh/
| Cullinet wrote:
| C isn't in my mind close to the metal but potentially lets you
| be more sympathetic to the metal. Thanks for your drawing
| attention to this, I'm looking forward to reading.
| normac2 wrote:
| Well, at the very least it's close in that it's native
| compiled (and not in a very abstracted way like JIT languages
| mostly are).
| pjmlp wrote:
| C like any other language, also has JITs and scripting
| implementations to chose from.
|
| WASM, MSIL, Tendra, TIMI are all examples of JIT/AOT
| implementation that have C (or C++) as part of their source
| languages.
| veltas wrote:
| My experience in 8-bit is you can write 80% in C and then just
| focus and optimise the bits that need it in assembly. The rule
| is the same as ever, don't prematurely optimise (i.e. by
| writing everything in assembly), but the amount that needs
| optimisation is a bit bigger.
| pryelluw wrote:
| I keep eyeing these calculators but can't really find an excuse
| to buy it. But now . . .
| chefkoch wrote:
| no https?
| z3t4 wrote:
| https is complicated and resource heavy (relative to plain http
| 1x).
| arthurcolle wrote:
| Savage
| eric__cartman wrote:
| you need at least an HP Prime for that
| baybal2 wrote:
| 8 years ago I worked for an LED lights company which had a bright
| idea to put whole ucLinux + webserver to be ran on a
| microcontroller on an LED light to put a claim on just how smart
| they are, and that now they are "an Internet company" like as if
| the dotcom bubble hasn't happened.
|
| So it was a $1 LED light board + $32 some old, and exotic MCU
| setup with own external memory, power supply, etc (even by 2013,
| ucLinux was already "very dead" without any new MCU support for
| 8-7 years.)
|
| Aside from most extreme size limitations for the HTML UI, I was
| genuinely surprised just how snappy it was.
| vletal wrote:
| According to timestamps of comments here I came approx 12 minutes
| late. RIP Casio
| alias_neo wrote:
| Loaded for me just now.
| andrewmcwatters wrote:
| This is really cool, but these days I prefer to host on
| virtualized Casios so I can scale up if I need Casio FX perf or
| down if I need Casio Databank perf.
| akouri wrote:
| Needed this today, thank you.
| tvirosi wrote:
| Funny that it seems to not have been affected at all by HN's hug
| of death.
| recursivedoubts wrote:
| this is like firing the death star at a plucky little pod racer
| ASalazarMX wrote:
| "I felt a great disturbance in the Force, as if millions of
| voices suddenly cried out in curiosity and one was suddenly
| silenced."
| nudpiedo wrote:
| That makes me think that a solar interntet is possible, perhaps
| routers and less intensive webpages may start moving if there was
| a value proposition for their owners. Sure it's not a whole
| solution just yet, but it's a start.
| buu709 wrote:
| Lowtech Magazine has a mirror of their site hosted on a laptop
| and fully powered by solar that's been running for a few years
| now.
| lovetocode wrote:
| Next post: how I burned my Casio calculator.
| ghalvatzakis wrote:
| Casio is on fire!!
| andrewmcwatters wrote:
| Better response times than other websites I browse... maybe they
| should upgrade to Casios.
| asmos7 wrote:
| down for me.
| laurent92 wrote:
| I wonder whether it would be fast if it ran some ancient web
| technology, such as CGI, .Net frameworks for the web or
| Filemaker web.
| munk-a wrote:
| I strongly suspect the webpage is entirely static and trying
| to run any sort of modern serverside framework would make it
| wail in protest - some simple dynamic elements using the
| native script might be doable though. It'd be neat to see if
| they could get a page counter up - just a dumb one that
| blindly increments the counter whenever any visit occurs.
| fsiefken wrote:
| we should all upgrade to gemini on casios, not sure if the
| processor is powerful enough to run the opentls encryption.
| perhaps a beowulf cluster can be made
| arkitaip wrote:
| Maybe we should all skip cloud platfoms and CDNs and buy a
| bunch of Casios instead.
| [deleted]
| andrewmcwatters wrote:
| How many Casios can you fit in a U1 rack?
| Johnny555 wrote:
| The calculator's dimensions are: 21.3 x 87.5 x 180.5mm
|
| A 1U rack comes in various depths, let's assume 1m
| (1000mm), and the width between rails is about 450mm. 1U is
| around 44mm in height.
|
| So in 1U, you could stack them 2 high, 5 wide, and 5 deep
| (this leaves a little wiggle room for cables and such), or
| 50 per 1U, or 2100 in a 42U full rack.
| andrewmcwatters wrote:
| Hah! That's production ready if you ask me.
| James-Livesey wrote:
| Shame, because I only have an fx-970G Plus which can't run custom
| code besides BASIC. Otherwise I'd join you in this calculator-
| net! Awesome project, though
| 29athrowaway wrote:
| When I got my TI-89 long time ago, I remember that the TI
| programming scene was very vibrant back then. Many game ports and
| all of sorts of interesting software.
| valvar wrote:
| Hm, maybe posting this to HN wasn't the best idea...?
| normac2 wrote:
| Still hanging in there so far! Bit slow, but still faster than
| cnn.com for me.
| Firerouge wrote:
| Maybe we'll get a follow-up on hosting a distributed cluster of
| casios to handle global load balancing
| midasuni wrote:
| Back in my day it was a Beowulf cluster running on hot grits
| serving Natalie Portman pictures
| fouc wrote:
| Oh man, Beowulf clusters, I forgot all about those. How
| come we never hear about them anymore?
| psyc wrote:
| I'm guessing because recurring one-liners don't do as
| well here as they did on SlashDot.
| stjohnswarts wrote:
| Because now they're just clusters. Lots of people make
| hobby ones out of rpi's to tinker with
| UncleSlacky wrote:
| Those are Brambles: https://elinux.org/Bramble
| floren wrote:
| "Running MPI programs on a cluster of commodity hardware"
| was perhaps a sufficiently novel idea to warrant a unique
| name back in the 90s, but these days it's more or less
| the standard for all but the most exotic and expensive of
| scientific computing... and even those expensive custom
| supercomputers tend to still be x86 processors running
| MPI code.
|
| Basically you don't hear about them any more because it's
| _all_ Beowulf clusters now.
| lupire wrote:
| I think the "Beowulf" name (the name of the first well
| known computer cluster) was mostly a Slashdot meme. As
| Slashdot faded, so did the name "Beowulf".
| dotancohen wrote:
| I am intrigued by your ideas and would like to subscribe to
| your newsletter.
| juanitolol wrote:
| lol
| marianov wrote:
| AWS Casio as a service.
| pletnes wrote:
| c4s?
| to11mtm wrote:
| Nawww, You'd want to call it Casiopeia (sic).
| nyadesu wrote:
| op just need to add some cache servers in front of it and
| it'll be fine, impressive
| TypeCaste wrote:
| Perhaps vertically scaling this on a Casio FX-CG50PRIZM is an
| option?
| kevincox wrote:
| In case it completely dies there are archives now available:
|
| http://web.archive.org/web/20210712193555/http://fxip.as2034...
|
| https://archive.is/5a44i
|
| Or the whole thing is small enough to fit in a comment:
| > GET / HTTP/1.1 > Host: fxip.as203478.net > User-
| Agent: curl/7.76.1 > Accept: */* > * Mark
| bundle as not supporting multiuse * HTTP 1.0, assume
| close after body < HTTP/1.0 200 OK < Server:
| uIP/1.0 http://www.sics.se/~adam/uip/ < Connection: close
| < Content-type: text/html < <!DOCTYPE html>
| <html> <head> <title>Casio fx-9750GII
| Webserver</title> <link href="https://fonts.googleapis.c
| om/css2?family=Lato&display=swap" rel="stylesheet">
| <style type="text/css"> * { margin: 0;
| padding: 0; } *:focus {
| outline: none; } *::-moz-focus-inner
| { border: 0; } body {
| background: #fafafa; font-family: "Lato", sans-serif;
| font-size: 100%; text-align: center; }
| a { color: #0075BF; }
| a:not(:hover):not(:focus):not(:active) { text-
| decoration: none; } </style> </head>
| <body> <br> <h1>Casio fx-9750GII
| Webserver</h1><br> Welcome! This page is hosted
| on an Casio fx-9750GII graphical calculator, running a SuperH
| SH4 processor.<br> It's running a port of the uIP TCP/IP
| stack, using SLIP over the 3pin 2.5mm serial port.<br>
| <br> <a href="https://github.com/Manawyrm/fxIP"
| target="_blank">Firmware (uIP port, webserver
| implementation)</a> <br><br> <img
| src="https://screenshot.tbspace.de/vfscewyjzir.jpg"
| style="width: 700px;"><br> <img
| src="https://screenshot.tbspace.de/ijlnydgsvkw.jpg"
| style="width: 700px;"><br> <i>(these pictures are not
| hosted on the calculator.)</i> <br><br> </body>
| </html
| amelius wrote:
| So most of the content (images, font) is hosted elsewhere ...
| stjohnswarts wrote:
| of course just like with most places using content
| providers :) . It would take forever (relatively)to pull
| those off the casio vs the html text for the page.
| [deleted]
| forgotmypw17 wrote:
| *:focus { outline: none; }
| *::-moz-focus-inner { border: 0; }
|
| Wow, the equivalent of having a building with existing
| wheelchair ramps and ripping them out because they're
| "unsightly".
|
| I guess it's a valid decision decision, but pretty crappy for
| anyone who needs them.
| busymom0 wrote:
| is that to imply that focus outline is meant for
| accessibility purposes?
| forgotmypw17 wrote:
| Yes, focus rectangles are an essential component of
| navigating the interface with the keyboard.
| busymom0 wrote:
| Fair. But if a user has accessibility enabled, that
| should override the css itself no?
|
| Also even with the focus outline disabled on other sites,
| I am able to navigate with the keyboard to text input
| fields. OP's site doesn't have any input fields so not
| sure why they have that CSS in place as I don't think
| it's doing anything.
| forgotmypw17 wrote:
| You are making the assumption that the user has some
| modicum of control over the browser's configuration.
| busymom0 wrote:
| No I am not. Users who require accessibility have it
| setup in their MacOS/Windows settings. It's a global
| setting for them. It's not website specific.
| Someone wrote:
| Users may access the site through a third-party device
| that they cannot configure, for example in a kiosk
| setting.
| busymom0 wrote:
| I mean we are talking about a demo project on hosting a
| tiny site on a calculator. Don't think anyone is trying
| to access it from a kiosk.
|
| But if your comment is a general opinion of websites in
| general, then yea, I see what you mean.
| tqx wrote:
| No, it will not override the CSS (not sure what you mean
| by "accessibility enabled" exactly).
|
| > even with the focus outline disabled on other sites, I
| am able to navigate with the keyboard to text input
| fields
|
| Correct, but for a user with vision problems, the focus
| outline lets them _see_ what has focus. CSS doesn 't stop
| them from inputting values.
|
| Focus styles are essential and should not be removed as a
| best practice (in general, this is a very small site).
| luke2m wrote:
| Thanks.
| bguberfain wrote:
| Not anymore
| publicola1990 wrote:
| Its a great mystery to me why American students have to buy
| expensive programmable calculators for course work. I vaguely
| remember reading that it is the result of lobbying by calculator
| manufacturers.
|
| In my country even undergraduate science/engineering students
| dont need a programmable calculator. Some undergraduate programs
| like CS don't need any type of calculator.
| sgt wrote:
| They are not expensive: https://www.amazon.com/Casio-
| fx-9750GII-Graphing-Calculator-...
| publicola1990 wrote:
| More than the quantum of the expense, I am questioning the
| need. Couple of hundred dollars on an unnecessary expense is
| still wastage.
| sgt wrote:
| But for Calculus (part of CS) you need a graphing
| calculator.
| Jolter wrote:
| You don't, unless the teaching staff decide to include a
| lot of numerical work in exams. Which I don't know why
| they would do. I would presume that a calculus course
| would teach you algebraic methods that you work out on
| paper.
|
| In Swedish engineering schools, graphing calculators are
| banned from exams in almost all subject.
| ithinkso wrote:
| Why? I've done calculus and analysis in college and no
| one has ever used a calculator, I'm not even sure what
| you would need one for, can you give me an example
| (seriously curious)
|
| The only time I remember needing a calculator in my
| entire education was some circuit theory because those
| Thevenins and Nortons get real ugly real fast (but even
| then you only need +,-,*,/)
| TedDoesntTalk wrote:
| This is not calculus specific, but how did you look up
| logarithms? With printed tables??
| ithinkso wrote:
| The same way as pi, e and other constants, log(17) is
| just that. I never had to convert them to some decimal
| approximation in calculus classes
|
| Edit: Ok, I remember now there was a statistics exam when
| we had something like Student's t-distribution tabulated
| on the exam sheet but I had to scrape my brain to find an
| example, it does happen though
| TedDoesntTalk wrote:
| > The only time I remember needing a calculator in my
| entire education
|
| I'm not asking about calculus classes. You specifically
| said "my entire education"
|
| So you never needed to convert log(17) to decimal in your
| entire education? Or you just converted it by hand like
| the Neanderthals did?
| publicola1990 wrote:
| You don't need a 100+PS programmable calculator for
| calculating log(17).
| TedDoesntTalk wrote:
| He didn't mention 100+PS or any price. He said he never
| used a calculator in college -- even a 5PS calculator.
| ithinkso wrote:
| Not on a piece of paper, no.
|
| Of course I had to at some point but in those instances I
| was at a computer anyway so I just used
| excel/python/matlab what have you, not a calculator like
| a Neanderthal
| publicola1990 wrote:
| Why? Calculus is primarily used and taught analytically
| in maths & cs courses in my country.
| knolax wrote:
| I got mine for 25 cents. They're fun.
| nsxwolf wrote:
| Doesn't this run on one of the CPUs Sega used in the Saturn or
| Dreamcast?
| whizzter wrote:
| Same as in the Dreamcast yes, albeit the Casio seems to be
| clocked far lower (29mhz in Casio vs 200mhz for DC). Also the
| memory seems a bit anemic at 60ish-kb vs 16mb main for the DC
| (+8mb videomem and 2mb audiomem).
|
| It was a fine CPU for the era with parallel instructions but
| also a fairly deep pipe compared to other contemporaries so it
| did best with a bit of hand tuning. (We worked on a DC game and
| Transform&Lighting loops needed hand optimizations iirc)
| xeeeeeeeeeeenu wrote:
| >29mhz in Casio
|
| It's _extremely_ overclockable, though:
| http://pm.matrix.jp/ftune2e.html
| opencl wrote:
| Not quite the same CPU but they're all based on the SuperH ISA.
| The 32X and Saturn both had dual SH-2s, Dreamcast had an SH-4,
| and Casio uses SH-3 and SH-4. The Dreamcast SH-4 has an FPU but
| the Casio one doesn't.
| H8crilA wrote:
| It's not any more. Please update the title.
| Cullinet wrote:
| reason why we link bonuses to documentation weighted for
| responsibilities for business continuity. but we make junior devs
| break the back of the writing (long form not code comments)
| precisely to develop understanding and appreciation for the scope
| of inadvertent misunderstanding and errors. we paid overtime
| rates for sick days used to produce documentation until it was
| rather taken advantage of by post commit blow out hangovers
| leveraging the difficulty with getting really hard problems out
| of one's head following a real impasse - this encouraged a post
| mortem culture of celebration of heroic failures of increasingly
| marginal prowess, although I would have liked to keep the
| practice with a little bit more review or limit.
| noitpmeder wrote:
| Does this account just spew text? All of your prior comments
| are a mix of word soup and technical jargon.
| ant6n wrote:
| Bot got 172 karma somehow
| noitpmeder wrote:
| other bots?
| a1369209993 wrote:
| Reminder: when operating a bot, the profile about field needs
| to contain contact information, not more bot spew.
| [deleted]
| SirOibaf wrote:
| Looks like the Casio is not web scale :)
| literallyaduck wrote:
| They just need to add a casio load balancer.
| literallyaduck wrote:
| In 2030 I look forward to renting a casio for a web server
| instead and being happy about it.
| ajsnigrutin wrote:
| By then, the screen will have almost 20% more pixels, the
| number of variables will be upgraded from 28 to 32, memory will
| be upgraded from 62kilobytes to 94kilobytes, and adjusted for
| inflation, it will still be the same price!
| carrja99 wrote:
| Not anymore.
| aftbit wrote:
| The author's blog has a lot of interesting projects, though I did
| not find a writeup on this one. https://tbspace.de/
| xwdv wrote:
| Would an Apple Watch be a better place to host a website than a
| Casio?
| m2com wrote:
| Slow load, but after a minute it worked for me. Pretty cool!
| tarkin2 wrote:
| Yeah. I assumed it was hugged to death. But it does load.
| Albeit slowly.
| sjsotelo wrote:
| One of the few hn times when I try and load it still actually
| works, impressive little thing!
| [deleted]
| rs999gti wrote:
| I subscribed it to an uptime monitor -
| https://www.isitdownrightnow.com/fxip.as203478.net.html
| sleepy_keita wrote:
| The author seems to have their own AS for "experimentation
| purposes" https://tbspace.de/as203478tbspacenetworks.html
|
| https://bgp.he.net/AS203478
|
| https://www.peeringdb.com/net/10981
|
| I've always been interested in doing something like this,
| although it's prohibitively expensive for me, even for IPv6-only.
| tiernano wrote:
| i got my V6 and V4 space, along with my ASN though Hostus.us
| (https://my.hostus.us/cart.php?gid=55). I use Vultr and a few
| other providers. For V6 only, you can get the ASN and V6 space
| for around $50 per year, and the vultr server is around $5 per
| month... my own ASN is under https://as204994.net with links to
| some providers and details...
| sleepy_keita wrote:
| I never would have come across this myself when doing very
| cursory research. One step closer... Thanks!
| iancarroll wrote:
| I walked through doing this with my AS (AS398328) in the US
| (ARIN), both for fun and for security research. Happy to chat
| with anyone who wants to go through the process, it was
| probably $1-2k in total for ARIN fees to get the AS and v4/v6
| space. Real transit is a lot worse though.
| dng88 wrote:
| 1-2k is a bit tough for testing the water. But above there is
| another $50 one. One wonder what is the difference as $50 is
| very manageable!
| tiernano wrote:
| going direct to ARIN/RIPE/APNIC etc have some stricter
| rules (IIRC, in RIPE you need a company or possibly
| business, plus a bank account in that name). by going for
| somone like HostUs, they are sponsoring the account, so
| they need to verify you and ask questions, then setup the
| ASN, etc. Also, going direct will provide you with V4/V6
| space allocations. They might charge a yearly fee (IIRC,
| its like 50 per allocation) but v6 is "practally" free but
| V4 will be a in a wait list... Finally, going direct, there
| is some sort of "kick back"... if the RIR makes more money
| than it cost to run the place, they reallocate fees back to
| the LIRs... so, you some times get money back... I have
| been tempted, but for RIPE, its 1400 per year, plus 2k
| setup... ouch...
|
| [EDIT] bit more on the RIPE fees:
| https://www.ripe.net/participate/member-
| support/payment/ripe...
| rayhaanj wrote:
| I have my personal LIR with RIPE and they do allow
| signing up as an LIR without being a company. As an
| individual you need to provide proof of identity via
| government issued ID and pay 17% Dutch VAT.
|
| When I signed up I got a /22 of V4 space and /29 of v6
| space, although for new signups I believe there's now a
| wait list to get a /24 and that's it for V4.
| iancarroll wrote:
| Yeah, AFAIK the LIR model is specific to RIPE. The ARIN
| team does seem to put a decent amount of work into
| vetting and support/etc with pleasant interactions, so I
| don't think the fees are too unreasonable (but maybe not
| the best idea as an individual).
| bswinnerton wrote:
| It can be relatively inexpensive, depending on which RIR you're
| using. There are providers like [Neptune
| Networks](https://neptunenetworks.org/) or
| [Vultr](https://www.vultr.com/) that you can peer with from a
| VPS so you don't need to get "proper" IP transit in a
| datacenter.
| sleepy_keita wrote:
| Oh, interesting -- I assumed you had to have a membership to
| the RIR directly (APNIC in my case, which would have been
| upwards of 1000AUD/month). Hmm... Thanks!
| toast0 wrote:
| APNICs info seems to show AUD 1180/year, not per month?
| Includes one ASN, one /24 on v4 and a /48 on v6. It's still
| significant, but not crazy.
| sleepy_keita wrote:
| Oh, you're right. 1180AUD / year + 500AUD sign-up fee..
| Still a bit expensive. If I had a business use case for
| it I'd be able to justify it, but it's too much for a
| hobby, unfortunately.
| dannyw wrote:
| This actually doesn't seem that bad for a hobby (I'd be
| using this almost as a fee to help me learn more about
| networking).
|
| Does APNIC give out ASes for hobbyist and experimental
| use?
| numpad0 wrote:
| There's no hobbyist program but neither is it
| corporate/for-profit only, from what I see.
|
| There are few people(mostly network engineers or
| researchers by trade and/or business owners themselves)
| who are assigned ASN to their homelab gears from JPNIC.
| Knowing the right doors to knock etc.
| sleepy_keita wrote:
| Good to know. Thanks
| toast0 wrote:
| You "just" need to be in their reigon, and have
| justification. Usual justification is that you have two
| upstream networks and they'll announce your prefixes
| (generally with BGP). That's going to cost some more
| money, but there's specialist VPSes for this these days.
| fgrsnau wrote:
| Check out the dn42 community if you simply want to play with
| the tech stack for free. The network uses the private AS range,
| allocates addresses from the private address ranges and peering
| happens over point-to-point VPN links.
|
| See https://dn42.eu
| max1cc wrote:
| In case it goes down: https://archive.is/5a44i
| bydo wrote:
| Wayback link:
|
| https://web.archive.org/web/20210712193555/http://fxip.as203...
| bikamonki wrote:
| ERR_CONNECTION_TIMED_OUT
| drexlspivey wrote:
| hit ctrl + square root to reload
| aaccount wrote:
| I think you might have killed the calculator by posting it here.
| LOL
| [deleted]
| pinacarlos90 wrote:
| This calculator got me through college. I then passed it down to
| my brother and it lasted him through college also.
| ndesaulniers wrote:
| Time for your brother to consider setting up a webserver on it!
| /s
|
| The TI 80 series were more popular in my college days, perhaps
| these Casio's were more popular in another time or region?
| stordoff wrote:
| I think Casio calculators are quite popular in the UK - I
| used an fx570 through secondary school and university. It was
| the one recommended by my school, and then it was one of the
| three models (all Casio) allowed by my university[1]. I
| briefly had a TI83 for A-Level Further Maths, but I didn't
| use it much.
|
| The fx-9750 would have been usable at secondary school
| (though it's more powerful than what you really need), but it
| wasn't on my university's allowed list.
|
| [1] Currently you can use an fx 991, fx 115, or fx 570 for
| CS, and I pretty sure the list was the same whilst I was
| there - https://www.cst.cam.ac.uk/teaching/exams/calculators
| mahathu wrote:
| Why did I click on this expecting a calculator out of all the
| possible servers would withstand HN's hug of death? Smart of the
| commenters here archiving it before it inevitably went down
| markzzerella wrote:
| Because static pages on a calculator likely to be more reliable
| and faster than whatever hipster stack is popular running on
| some VC funded pile of compute power across all of Amazon's
| datacenters.
| nvader wrote:
| FWIW I still saw the link at #1, clicked it almost in
| exasperation after seeing it at the top of HN all day, and
| was pleasantly surprised to see it load. Bravo, little
| calculator.
| dleslie wrote:
| For comparison: the 32X and Saturn used SH2 processors.
| alecakin wrote:
| Did this get the hug of death?
| munk-a wrote:
| It looks like it may have briefly - but it loaded great for me.
| Semiapies wrote:
| Loaded for me!
|
| (Meanwhile, I got a "Can't serve requests that fast" from HN
| when I first tried to reply.)
| drewzero1 wrote:
| Looks like it's time to upgrade to a Casio server!
| dlsa wrote:
| All startups soon learn the importance of running server
| grade casios in production.
| Threeve303 wrote:
| The calculator likely exploded
| robohoe wrote:
| The little engine that could(n't)
| euroderf wrote:
| Maybe it logs to a daisy wheel printer ?
| mbroncano wrote:
| It seems to work!
| mmmuhd wrote:
| This is really inspiring as I have been eyeing my smart electric
| utility meter as the perfect candidate for running my portofolio
| website.
| bob1029 wrote:
| Make sure you set your TTLs high enough to account for the
| occasional late meter reading.
| cto_of_antifa wrote:
| Dns record TTLs? Why?
| jhallenworld wrote:
| Well Casios are better than TI calculators.
|
| My current favorite calculator is Casio ES-115 PLUS2
|
| https://www.amazon.com/Casio-fx-115ESPLS2-Advanced-Scientifi...
|
| I like it because when you enter sin(pi/12) you get
| (sqrt(3)-1)/(2*sqrt(2)) in mathematical notation, which is really
| nice for a $16 calculator.
|
| Here I'm going to hurt TI: If you need a TI-84 or TI-89 for
| school, the place to get them cheap is shopgoodwill.com:
|
| https://www.shopgoodwill.com/Listings?st=ti-84%20plus&sg=&c=...
| nvader wrote:
| I don't know what TI ever did to you, but I know that I would
| not cross you lightly.
| vanderZwan wrote:
| They're exploiting an effective monopoly position (through
| schools mandating their usage). I can see that being enough
| of a reason to push back against that.
| saagarjha wrote:
| > Well Casios are better than TI calculators.
|
| For scientific calculators, I would agree. For graphing
| calculators they _might_ be better on technical merit or cost,
| but everyone is going to write programs for the TI so you might
| as well get that one.
| pjmlp wrote:
| Not everyone, TI seems to be US thing due to the government
| agreements.
|
| I never owned one, and got three generations of scientific
| programmable CASIO calculators.
|
| It was either that or HP ones, as TI were pretty much ignored
| in Portugal.
| parsecs wrote:
| Cleaned url: https://www.amazon.com/Casio-
| fx-115ESPLS2-Advanced-Scientifi...
|
| Thank you so much for pointing out fx-115ES PLUS2! I looked for
| a good hour yesterday trying to find an alternative to the
| fx-115ES PLUS (first edition) with the same features, after
| Casio discontinued the original. I'm honestly embarrassed that
| I had overlooked this...
|
| I do absolutely agree that Casio calculators are just wholly
| better than TI in general. Their menu driven interface is a
| game changer for me back in middle school. TI-36X Pro felt
| cumbersome and confusing, while fx-115ES was much more
| intuitive.
| dng88 wrote:
| Better as it is solar... can it use similar firmware with
| similar c and web server?
| saagarjha wrote:
| I really don't understand why Casio keeps changing the entire
| design of their calculators, though.
| naikrovek wrote:
| they don't; they have multiple lines which don't change
| much generation to generation.
|
| a casual observer might think that they can't pick a
| design.
| saagarjha wrote:
| I'm not sure I understand. The calculator linked is the
| second version of that model, which to my understanding
| is identical software wise but looks completely
| different.
| VikingIV wrote:
| They're amazing little machines. I have a predecessor to that
| model, whose battery still works since purchased new for my
| school year starting in 2000. It's not solar-charged, either.
| emodendroket wrote:
| TI is pretty clearly just coasting on being the one mandated by
| a lot of schools; there's no way you can justify them still
| costing like $100 and having the same capabilities as when I
| was in high school.
| fomine3 wrote:
| Oppositely here in Japan (where Casio locates), high school
| students usually don't use calculators on math/physics
| classes.
| tempodox wrote:
| That's interesting and somewhat surprising to me. Do they
| use slide rules and/or function value tables printed on
| paper?
| ithinkso wrote:
| Not sure about Japan but in Poland the variables in
| problems are either symbolic and you solve it
| symbolically, or if they are given as values then they
| are usually chosen just right to not make arithmetic much
| of a bother (that actually results in a fun 'sanity
| check' that if you start getting something waaay crazier
| than 'normal' you double check if you didn't screw
| something up somewhere along the way or if there is a
| better way to solve it).
|
| But everyone is taught to only substitute variables for
| values at the very, very end so calculators are not
| needed at all. At some point in education there is no
| point in testing arithmetic skills over and over again,
| the problems and the methods of finding out solutions to
| them are what matters
| fomine3 wrote:
| Almost same as Japan. If we need calculation (like for
| some physics exam), we use column method on paper.
| willyt wrote:
| Exactly, same in the UK. So a typical first question in
| the maths exam we take at age 14/15 might be 'Factorise
| the quadratic x2+5x+6'. No calculator needed.
| tempodox wrote:
| That makes sense. If you used a calculator's computer
| algebra system (CAS) for the symbolic manipulation, it
| would certainly count as cheating.
| willyt wrote:
| We were allowed to use calculators when I took my school
| exams in the uk. But our exam questions often asked us to
| give the answers in surds i.e 3/4*[?]2 not as a decimal
| which our calculators couldn't do then. Our teachers told
| us there would never be a question where the answer
| couldn't be expressed cleanly using either fractions or
| surds, that we should practice doing the maths and show
| our workings on the exam paper and that if we were using
| a calculator we were wasting time doing data entry as the
| actual addition / division / subtraction would never be
| hard enough to justify it. We memorised a table of surds
| for 30o 45o and 60o angles but I've forgotten why now.
| Also they hard reset our calculators as we went into the
| exam.
| tititititi wrote:
| Your comment is like the XKCD from a decade ago that says the
| same thing, except not funny or original
|
| https://xkcd.com/768/
| krallja wrote:
| The new ones have rechargeable batteries, color screens, USB,
| and Python. So, only a decade out of date.
| imbuhuo wrote:
| TI still use really outdated hardware (some ARM9 thing) on
| their high-end nSpire models.
|
| With the same price even HP Prime G2 has way better
| hardware (NXP iMX6ULL, Cortex-A7, 256MB DDR3, USB EHCI OTG)
| and wide software spectrum (no Secure Boot enforced.) I've
| put full scale Linux and Windows ARM (arm32 IoT) on that
| platform.
| Thetawaves wrote:
| Fun Fact: New Arm 9 chips are still coming out to this
| day. They are the highest performing Arm chips that
| feature generic external bus interfaces.
| crazygringo wrote:
| I searched for graphing calculator apps on iOS the other day
| and found a ton that simply attempt to recreate the TI-84,
| e.g. [1].
|
| So anyone with high school kids: are they still buying $100
| physical calculators? Or are they just using free/cheap apps?
|
| [1] https://apps.apple.com/us/app/graphing-
| calculator-x84/id1247...
| brarsanmol wrote:
| Just graduated secondary school in April. Just as a someone
| said in a reply below, anything other than a physical
| calculator is still banned during assessments. There are
| tools like Desmos, GeoGebra, etc... that may be used by the
| instructor and students during lessons though. Although
| it's strange, there is no explicit rule provided by our
| Mathematics faculty that bans higher functioning
| calculators I've only seen one person carrying one.
| aquova wrote:
| I'm a few years out of high school, but during my time
| anything other than physical calculators were explicitly
| banned due to the potential for kids to be accessing the
| internet during exams. I even had a friend who won one of
| TI's higher end calculators at a math competition, only for
| him to be banned to use it during exams because of its
| higher capabilities. Perhaps things have changed in the
| post-Covid world.
| tyre wrote:
| In my high school physics and math classes, we were
| allowed to run any programs that we programmed ourselves.
| This was on Ti-84s so BASIC not Python.
|
| Given the context, it made a lot of sense.
| robohoe wrote:
| Yeah about the same here. I wrote some programs to handle
| quadratic formulas. Impressed the Algebra teacher who
| then let me take AP Computer Science so I can learn to
| program in Java...which I promptly forgot after
| graduating HS.
| codetrotter wrote:
| When I was in HS, at the exams we were expected to use
| our TI-84+ calculators, but we were not allowed to have
| any programs of our own, so they made us clear the
| programs before they handed out the problems.
| feteru wrote:
| Which you could work around by archiving and then
| unarchiving the programs. I remember having to do a soft
| factory reset for one class before exams, rather than
| just clearing programs. At least they took the policy to
| its logical extension
| JohnWhigham wrote:
| That's what I did 10 years ago when my TI-89 broke right
| before my Linear Algebra final. I somehow convinced my
| instructor that when I had my phone out, I was actually
| using the calculator on my phone.
| emodendroket wrote:
| There's no way they let you take the SAT with your phone
| out. Acceptable calculators are actually enumerated though
| there's more than I realized.
| https://collegereadiness.collegeboard.org/sat/taking-the-
| tes...
| jhallenworld wrote:
| I'm really surprised that the open source NumWorks
| calculator is on that list! Also the RadioShack / Casio
| EC-4033 programmable from the 1980s...
| mmcgaha wrote:
| Checking in with a TI-30X Pro and get the equivalent
| (sqrt(6)-sqrt(2))/4 also in mathematical notation. All of my
| work is saved when I turn the calculator back on. Plus I can
| just set a flag for imaginary mode without a separate complex
| app so everything works the same in both modes. The screen is
| higher resolution and the multi-tap entry is pretty darn sweet.
| jhallenworld wrote:
| Annoyingly TI-30X Pro is Europe only (also costs more, but
| looks better quality and design)... but you are right, it
| looks pretty good, as does the US-available TI-36X Pro. I
| will give one a try. My main gripe with TI is the school
| requirement for the TI-84 series.
| behnamoh wrote:
| "This website is hosted on a Casio..."
|
| Not anymore it isn't.
| nomel wrote:
| I really enjoy the HP calculators. RPN is much closer to how my
| brain perceives the equations.
| abawany wrote:
| Unfortunately they seem to have abandoned it on their newer
| models: I recently got a HP Prime and no RPN in sight afaict
| (https://www.hp.com/us-en/campaigns/prime-graphing-
| calculator...) .
| mjcohen wrote:
| Sure there is. Go to Settings and move down to Entry. Hit
| Enter and you get your choice of Textbook, Algebraic, or
| RPN. Go down to RPN, press Enter and then Esc.
|
| Presto, RPN.
| abawany wrote:
| Thank you - I used the calculator more in the last hour
| after making this change than I had in the past month.
| I'm ashamed I didn't figure this out - I should have done
| a better job of RTM.
| j1elo wrote:
| Must be a market specific model, because that one shows up for
| me in the .com tld but not in the regional one :-(
|
| But from there I've started digging and they have so many
| different models with similar appearances... Anyone knows the
| difference between fx-82ES and fx-82SPXII?
| urutau wrote:
| FX-115ES Plus-2 is the model for the USA market. For other
| countries the same device (but in another color) goes by
| FX-991ES Plus-2.
|
| https://www.casio.com/sg/scientific-
| calculators/product.FX-9...
| j1elo wrote:
| Thanks!! The naming is so confusing... How are we supposed
| to know that "115ES" and "991ES" are in fact the same
| thing?
| FridayoLeary wrote:
| >Well Casios are better than TI calculators.
|
| Agreed. For basic maths, the best scientific calculator is the
| fx83. The ES 115 is based on it. The graphics and controls and
| navigation is really good. Nothing comes close.
| dng88 wrote:
| Seems software side quite clear. Not sure the hardware side.
|
| Is the usb power used to communicate with the host and run on
| that usb power. What is the other cable do? And how network work
| (other than the domain ... wow)
| pellias wrote:
| I can imagine if the site own who is stuck in Mars with a Casio
| fx-9750GII will attempt to use it to host a web page to
| communicate back to earth or something.
| thereddaikon wrote:
| Seems the CPU from a Dreamcast is a little overkill for a
| greyscale graphing calculator isn't it?
| walrus01 wrote:
| based on the hostname, although the httpd isn't answering, it
| makes me wonder if they also made the calculator speak BGP and
| take a full ipv4/ipv6 BGP table. Somehow with the RAM
| requirements I doubt it.
| manawyrm wrote:
| lol! The IP stack does not have forwarding support, but I guess
| you could implement some rudimentary loopback announcement
| support.
| quickthrower2 wrote:
| Impressed the page opened (albeit after 10 seconds) for a high up
| HN post!
| gumby wrote:
| I'm kind of amazed that a calculator needs a processor as
| powerful as a SH4. If you had video out you could run Sega games
| on that thing.
| carlhjerpe wrote:
| Is this Casio colocated in a Hetzner datacenter?
| TravisHusky wrote:
| It is cheaper than AWS's Casio as a Service and for small sites
| you barely notice the difference.
| Yhippa wrote:
| > AWS's Casio as a Service
|
| AWS Cassiopeia
| munk-a wrote:
| Then again AWS's Casio as a Service is available in a HIPAA
| compliant form.
|
| Actually, HIPAA auditors would probably love a webserver
| running on a Casio since the hardware can be closely vetted
| and won't randomly change.
| aaron-santos wrote:
| If you use an an alt-CaaS you'll won't benefit from
| Infinidash integration, but then again you won't have the
| Infinidash configuration learning curve to deal with so it
| could still end up a net positive.
| tfehring wrote:
| Sure, but with fixed hardware resources you risk the site
| going down with traffic spikes like this, with AWS you have
| access to calculatorless options that can easily scale to
| handle increased request volume.
| munk-a wrote:
| Is that their competing product offering to match
| virtualizaled calculators delivered by hyperdivisor?
| rzzzt wrote:
| Pen and paper!
| da_big_ghey wrote:
| maybe he has reverse proxy to house because no public ip with
| ports for hosting?
| carlhjerpe wrote:
| I would argue it's not really hosted on the Casio then, since
| it's only static content the reverse proxy cache would hit
| 100% every time, except on TTL.
| gruez wrote:
| Maybe it's just a forwarding setup with no caching?
| narrator wrote:
| I have a soft spot in my heart for underpowered computers, but
| practically, I know this is kind of an unnatural fetish, and not
| really a healthy love. The little computer costs way more and
| consumes way more per watt than modern systems, and any minimal
| use case is better done via virtualization in a container on a
| more capable computer. Yet, the fetishism of all manner of
| obsolete, underpowered and wildly obsolete chip process
| technology remains!
| imoverclocked wrote:
| I mean, for its normal load it probably consumes far less
| overall power to service this content than anything else you
| would replace it with.
|
| From the tech specs: Batteries: 4x AAA Battery life: 230h
|
| From a Google search+answer: Energizer's AAA battery has a
| capacity of 1250 milliamp hours, or 1.87 watt-hours
|
| So 4 of those can power the device for 230 hours ... that's
| about 32mW. For reference, a RaspberryPi 2b idles at > 1W.
| Simplicitas wrote:
| in case??
| tyingq wrote:
| Interesting. I still have a Jornada 680, which uses the Hitachi
| SH3 CPU (compared to this Casio's SH4). It came with Windows CE,
| but there was a Linux distro for it called Jlime.
| https://en.wikipedia.org/wiki/Jlime
| t8e56vd4ih wrote:
| pretty impressive for a guy who uses tabs!
| avgDev wrote:
| I'm not really proud of this but my 1st step into programming was
| writing programs to calculate things for me on the TI in high
| school.
|
| At some point teachers made us delete programs in front of them
| before major tests.....someone else wrote a program that would
| simulate deleting programs and showed an empty screen which meant
| all programs were deleted.
|
| I wasn't a dumb kid but I always felt like why just not program
| those things and have more free time? I guess I was always a dev.
| munk-a wrote:
| Assuming Casios can run links or some custom browser - does
| anyone want to grab a snapshot of this page being rendered on
| their calculator to complete the circle?
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(page generated 2021-07-13 23:02 UTC)