4 October, Day 12
CSC 325 – Computer Organization and Architecture I review
see chapters 1 and 2 in CS:AO for good review material
Architecture = high-level view of H/W
a programmer’s (assembly lang, machine lang) view
creates a computer “family”
Organization = deep view of H/W
ex: multiplication instruction
existence of a multiplication instruction is architectural issue
implementation of a multiplication instruction is an organizational issue
Function – what does it do?
Structure – how is it connected?
Organization:
fundamental h/w (of processor unit) component is … switch
transistor
gate – combination of transistors which performs a Boolean function
Boolean functions: not, or, and
show truth tables, gate symbols
functionally complete set – minimum number of diff. functions needed
to create any Boolean function
a. and, or, not
b. nand
show nand
show how to create “not circuit” using nand
show how to create “and circuit” using nand
CSC 490 Course Notes and Outline, © Dr. Gary Locklair, Fall 2006
