The PC architecture, based on Intel's x86 microprocessor family, continues to dominate desktop computing with over 85% of PCs using an x86-based CPU.
What Happened on August 12th
august 12, 1981 IBM Introduces Personal Computer
IBM introduces its Personal Computer (PC) also known as the IBM Model 5150, lending legitimacy to microprocessor-based computers. IBM's first PC ran with a 4.77 MHz Intel 8088 microprocessor and used Microsoft's MS-DOS operating system. In 1983, Compaq Computer Corp. released the first clone of the IBM PC, a machine embodying an identical copy of the PC architecture -- which IBM had made publicly available -- and begining the gradual decline of IBM's share of the personal computer market.