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McKenzie




PostPosted: Mon Jan 26, 2004 10:29 am   Post subject: (No subject)

subprogram - a function or procedure designed to carry out one specific task.

carry bit - when you add two binary bits you get:
code:

 0   1   0   1 
 0   0   1   1
 -   -   -   -
 0   1   1  10

the 1 bit in the 1 + 1 is called the carry bit. If you were adding a bunch of bits this carry bit would be carried into the addition to the left.

ASCII - American Standard Code for Information Interchange

pseudo code - sorta half-english/half-computer language used to plan programs.

top down programming - starting with the whole program you break it down into subprograms, and there into furter subprogram until you can code each of these small versions

method programming -?

DMA - direct memory access, a technique for transferring data from main memory to a device without passing it through the CPU.

EOF - End Of File - used to stop reading from a file

LEX -A Lexical Analyzer Generator

recursion - when subprogram calls itself.
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jonos




PostPosted: Mon Jan 26, 2004 12:15 pm   Post subject: (No subject)

what is a lexical whatever (LEX)?
McKenzie




PostPosted: Mon Jan 26, 2004 12:59 pm   Post subject: (No subject)

One of the problems with computer TLAs (Three Letter Acronyms) is that they often get more than one definition. The LEX I was refering to is a tool you use to help when you are actually making a compiler of your own. I'm not sure if there is a non-unix version of it, and I'm not sure why it's being talked about in ICS3M
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