A 21st century laptop computer. a computer is a programmable machine that receives input stores and manipulates data and provides output in a useful format.. Computer n. a device that computes especially a programmable electronic machine that performs high-speed mathematical or logical operations or that Dell designs builds and customizes a broad range of computer products and services for consumer and professional use. find out about special deals on pcs and shipping buy a new computer online or get customer service support. Translations of computer. computer synonyms computer antonyms. information about computer in the free online english dictionary and encyclopedia.. Computer definition an electronic device designed to accept data perform prescribed mathematical and logical operations at high speed and display the results see more. We are all familiar with what a computer is in a specific contemporary sense.. but the term computer means more than simply the macs and pcs we are familiar with.. Macintosh hardware software and internet tools. offering quicktime info developer resources and other items related to apple computers. Provider of technical information and services to computing professionals. This page describes the term computer and lists other pages on the web where you can find additional information. Howstuffworks computer gets you explanations reviews opinions and prices for the internet home networking hardware and software.