Computers

Information and resources on Web Directory of Computers, Desktop, Laptop.

A computer is a machine designed for manipulating data according to a list of instructions known as a program. Computers take numerous physical forms. Early electronic computers were the size of a large room, and such enormous computing facilities still exist for specialized scientific computation — supercomputers — and for the transaction processing requirements of large companies, generally called mainframes. Smaller computers for individual use, called personal computers, and their portable equivalent, the laptop computer, are ubiquitous information-processing and communication tools.