The IBM Personal Computer AT was released in 1984 as the fourth model in the IBM Personal Computer line, following the IBM PC XT and its IBM Portable PC variant. It was designed around the Intel 80286
IBM 5170 with Floor Standing Enclosure and compatible non-IBM display
An IBM PC compatible is any personal computer that is hardware- and software-compatible with the IBM Personal Computer and its successors. Like the original IBM PC, an IBM PC–compatible computer uses
The Compaq Portable was one of the first nearly 100% IBM-compatible PCs.
Almost all home computers since the 1990s are technically IBM PC-compatibles.
The original IBM PC (Model 5150) motivated the production of clones during the early 1980s.
The DEC Rainbow 100 runs MS-DOS but is not compatible with the IBM PC.