Subj : Re: Do all programming languages use files?
To   : comp.programming
From : Richard Heathfield
Date : Mon Aug 29 2005 02:17 pm

Past said:

> I was doing a research to see if all the programming languages ever
> written have atleast some small level capability of successfully
> writing and reading from files?

No, they don't.

Consider, for example, this language, which was designed for use on a 
particular 3-bit processor with one general-purpose register. It has the 
following syntax:

HALT  - stop the program
JNZ n - redirection of program to address n unless register is clear
LSH   - left-shift the register by one bit
RSH   - right-shift the register by one bit
AND n - perform bitwise-AND of n and register, storing in register
OR n  - perform bitwise-OR of n and register, storing in register
XOR n - perform bitwise-XOR of n and register, storing in register
NOT   - perform bitwise-NOT of register, storing in register

It is possible to write (very primitive) programs in this language - but 
there is no file handling at all.

-- 
Richard Heathfield
"Usenet is a strange place" - dmr 29 July 1999
http://www.cpax.org.uk
Email rjh at the above domain

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