Posted on at

"Computer technology" and "Computer system" redirect here. For the company, see Computer Technology Limited. For other uses, see Computer (disambiguation)and Computer system (disambiguation).
Acer Aspire 8920 Gemstone_fa_rszd.jpgColumbia Supercomputer - NASA Advanced Supercomputing Facility_fa_rszd.jpgIntertec Superbrain_fa_rszd.jpg
2010-01-26-technikkrempel-by-RalfR-05_fa_rszd.jpgThinking Machines Connection Machine CM-5 Frostburg 2_fa_rszd.jpgG5 supplying Wikipedia via Gigabit at the Lange Nacht der Wissenschaften 2006 in Dresden.JPG
DM IBM S360_fa_rszd.jpgAcorn BBC Master Series Microcomputer_fa_rszd.jpgDell PowerEdge Servers_fa_rszd.jpg

computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.

Conventionally, a computer consists of at least one processing element, typically a central processing unit(CPU), and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices allow information to be retrieved from an external source, and the result of operations saved and retrieved.

In World War IImechanical analog computers were used for specialized military applications. During this time the first electronic digital computers were developed. Originally they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1]

Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Simple computers are small enough to fit into mobile devices, and mobile computers can be powered by smallbatteries. Personal computers in their various forms are icons of the Information Age and are what most people think of as “computers.” However, the embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are the most numerous.


About the author


plz buzz me

Subscribe 1891