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CSCE 110
Pascal
19
Computer Science
Undergraduate 1
12/08/2010

Additional Computer Science Flashcards

 


 

Cards

Term
arithmetic logic unit (ALU)
Definition
performs operations on data (ex: addition, multiplication)
Term
registers
Definition
special memory cells that hold data used by ALU and are even faster than cache
Term
control unit
Definition
-figures out what ALU should do next
-transfers data between main memory and registers
Term
operation
Definition
what action to do
Term
operand
Definition
what is affected
Term
instruction register
Definition
holds current instruction to be executed
Term
program counter
Definition
holds address of next instruction in the program to be fetched from memory
Term
machine cycle:
Definition
fetch, decode, execute
Term
some reserved words:
Definition
and, array, begin, case, const, div, do, downto, else, end, file, for, forward, function, goto, if, in, label, mod, nil, not, of, or, packed, procedure, program, record, repeat, set, then, to, type, until, var, while
Term
field width
Definition
the computer will enter enough spaces to make sure the information will be displayed
Term
decimal places
Definition
for real numbers the data will be displayed in an exponential (floating-point) form
Term
compound statement
Definition
executes a sequence of statements as a single statement
Term
nested decision-making
Definition
one decision is executed inside another
Term
control
Definition
a variable that determines whether the loop executes or not
Term
pre-test loops:
Definition
while-do, for
Term
post-test loops:
Definition
repeat-until
Term
software development:
Definition
gathering/analysis, design, implementation (coding), testing, deployment/maintenance
Term
pass by value
Definition
passing a copy of the value as an argument
Term
pass by reference
Definition
passing the address itself rather than the value
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