COIS 1010H Lecture Notes - Lecture 1: Flash Memory, Storage Area Network, Floating-Point Unit
11 Jan 2018
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Document Summary
Processing speed: cpu clock speed: one measurement of processing speed. Measured in megahertz (mhz) or gigagertz (ghz: alternate measure of processing speed is the: number of instructions a cpu can process per second. Word size: the amount of data a cpu can mainipulate at one time. (typically 32 or 64 bits) Cache memory: special group of very fast memory chips located on cpu (level one fastest) More cache memory means faster processing// internal. Bus: electronic path over which data can travel. Bus width: number wires in bus over data can travel. Ram : random access memory: main memory: chips arrange on circuit board called memory module plugged into motherboard, stores essential parts, volatile: contents ram lost when computer shut off. Registers: high speed memory built and used by cpu. Rom: read only memory: non-violate chips on motherboard into data or programs have been permanently stores. Flash memory: type of nonviolate memory can be erased or reprogrammed.
