The personal computer was introduced in 1975, a development that made the computer accessible to individuals. Up to that time computers had been very large and expensive, operated mainly by big companies. The first modern computers were created in the...

In 1976, the Cray-1 supercomputer was installed at Los Alamos National Laboratory in New Mexico. It was then the fastest computer in the world, performing 160 million floating-point operations per second. The computer cost 8.8 million dollars and...

The personal computer (abbreviated PC) is a computer that does not need to be connected to a larger computer in order to operate, and is capable of repetitively and efficiently performing calculations and instructions while being operated by an...

(PC), a computer designed for use by only one person at a time. A personal computer is a type of microcomputer—i.e., a small digital computer that uses only one microprocessor. (A microprocessor is a semiconductor chip that contains all the...

Microcomputer designed for use by one person at a time. A typical PC assemblage comprises a CPU; internal memory consisting of RAM and ROM; data storage devices (including a hard disc, a floppy disc, or CD-ROM); and input/output devices (including a...

A personal computer (PC) is a computer whose original sales price, size, and capabilities make it useful for individuals. A personal computer may be a home computer, or may be found in an office, often connected to a local area network. The...