AT-class machines ran DOS and were extremely sluggish under Windows. See 286. The original PC launched by IBM in 1981 used Intel's 16-bit 8088 CPU. This chip family was designed so that the ...

A PC that was made by IBM. In 1981, the first IBM PC was introduced. However, the company was not terribly optimistic, projecting that 250,000 machines would be sold in five years. In fact ...