Computer system

  • Authors:
  • Herbert Hellerman;Edwin D. Reilly

  • Affiliations:
  • -;-

  • Venue:
  • Encyclopedia of Computer Science
  • Year:
  • 2003

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Abstract

A modern computer system is one of the foremost technological achievements of humankind. This is due to its remarkable speed, very high reliability, and almost limitless versatility. For example, in the year 1999 a large mainframe computer could execute over 800 million instructions per second (MIPS) when processing business workloads, and certain supercomputers (q.v.) designed to handle numerically intensive scientific and engineering work can perform more than a trillion arithmetic operations per second. Even small personal computers (q.v.) can execute several million instructions per second.