Computer system" redirects here. For other uses, see Computer (disambiguation) and Computer system (disambiguation).ComputerAcer Aspire 8920 Gemstone.jpgColumbia Supercomputer - NASA Advanced Supercomputing Facility.jpgIntertec Superbrain.jpg2010-01-26-technikkrempel-by-RalfR-05.jpgThinking Machines Connection Machine CM-5 Frostburg 2.jpgG5 supplying Wikipedia via Gigabit at the Lange Nacht der Wissenschaften 2006 in Dresden.JPGDM IBM S360.jpgAcorn BBC Master Series Microcomputer.jpgDell PowerEdge Servers.jpgComputers and computing devices from different erasA computer is a device that can be instructed to carry out arbitrary sequences of arithmetic or logical operations automatically. The ability of computers to follow generalized sets of operations, called programs, enables them to perform an extremely wide range of tasks. http://www.currentupdatespro.in