Computer architecture: Difference between revisions

Revision as of 10:14, 19 December 2001

Revision as of 14:43, 19 December 2001

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Computer retailers describe the performance of their machines in terms of [[CPU]] [[Speed]] (in MHz or GHz). This refers to the number of instructions the Central ProccessingProcessing Unit (CPU) can perform each second (in millions or billions respectively). However this is only one of a number of factors that impact on the performance of a machine.

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Since cost is usually constant, the variables usually consist of latency, throughput, convenience, storage capacity and input-output. The general scheme of optimization is to budget different parts of the computer system. In a balanced computer system, the data rate will be constant for all parts of the system, and cost will be allocated proportionally to assure this. The enactexact forms of the trade-offs depend on whether the computer system is being optimized to minimize latency or maximize throughput.