Subj : floppy disks are cool!
To   : Ed Vance
From : Ben Collver
Date : Tue Apr 23 2024 12:42:19

  Re: floppy disks are cool!
  By: Ed Vance to Ben Collver on Tue Apr 23 2024 11:32 am

I am enjoying the rabbit holes we are going down together on this
floppy thread.  I remember using a tape drive on a VIC-20 and a
friend's C=64.  Once i bought a tape drive with cables at a yard
sale for $5 and hooked it up to my first PC.

https://en.wikipedia.org/wiki/IBM_cassette_tape

I wrote ASM login code to give audio prompts to enter user name,
password, and if given the wrong password it spoke out
"Wrong password, loser!" recorded from a friend who was willing to
do voice acting for this project.

Useless on a single-user system like DOS, but still fun.

I don't remember exactly how it worked.  INT 15h only supports
motor-off, motor-on, read-data, and write-data.  My guess is
that i used motor-on, a timed delay, and then motor-off for
each prompt.

* User prompt
* Password prompt
* Then either silent login or:
* Wrong password prompt

I could have repeated copies of the prompts, to use the tape for
multiple login attempts.  The PC couldn't rewind the tape, so i
had to do that manually.  :>
--- SBBSecho 3.14-Win32
 * Origin: The Fool's Quarter, fqbbs.synchro.net (21:1/149)

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