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A personal computer (PC) is usually a microcomputer whose price, size, and capabilities make it suitable for personal usage. The term was popularized by Apple Computer with the Apple II in the late-1970s and early-1980s, and afterwards by IBM with the IBM PC.

History

Mainframes and large 'minicomputers'

Before their advent in the late-1970s to the early-1980s, the only computers possibly available, if the user was privileged, were "computer-terminal based" architectures owned by large institutions. In these, the technology was called "computer time share systems", and used minicomputers and mainframe computers. These central computer systems

Some of the first computers that might be called "personal" were early minicomputers such as the LINC and PDP-8, and later on VAX and larger minicomputers from Data General, Prime, and others. By today's standards they were very large (about the size of a refrigerator) and cost prohibitive (typically tens of thousands of US dollars), and thus were rarely purchased by an individual. Ibm Laptop Power Supply.