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|    alt.os.development    |    Operating system development chatter    |    4,255 messages    |
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|    Message 2,689 of 4,255    |
|    Joe Monk to All    |
|    Re: PDOS/86    |
|    17 Jul 21 19:09:11    |
      From: joemonk64@gmail.com              > ALGOL is for humans, not computers. Almost all computers        > are binary. Not ASCII text. I don't see how it would be possible        > to prevent another programming language from being made        > available. Another compiler is an indistinguishable executable.               "The Burroughs ALGOL compiler was very fast — this impressed the Dutch       scientist Edsger Dijkstra when he submitted a program to be compiled at the       B5000 Pasadena plant. His deck of cards was compiled almost immediately and he       immediately wanted several        machines for his university, Eindhoven University of Technology in the       Netherlands. The compiler was fast for several reasons, but the primary reason       was that it was a one-pass compiler. Early computers did not have enough       memory to store the source code,        so compilers (and even assemblers) usually needed to read the source code       more than once. The Burroughs ALGOL syntax, unlike the official language,       requires that each variable (or other object) be declared before it is used,       so it is feasible to write        an ALGOL compiler that reads the data only once. This concept has profound       theoretical implications, but it also permits very fast compiling. Burroughs       large systems could compile as fast as they could read the source code from       the punched cards, and        they had the fastest card readers in the industry.              "The powerful Burroughs COBOL compiler was also a one-pass compiler and       equally fast. A 4000-card COBOL program compiled as fast as the        000-card/minute readers could read the code. The program was ready to use as       soon as the cards went through the        reader."              Joe              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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