It was in August thirty years ago, that IBM entered the personal computer market. There were other computers available at the time including the Apple II, Tandy’s TRS-80 and the Commodore PET. The original PC model 5150 came with 16 kilobytes of memory, one 5.25 in. floppy drive (or a cassette drive), a mono color (green) monitor. Most people used the PC DOS operating system by a new company called Microsoft but there was at least one other system available (CP/M). The starting price was just over $1500. What made the PC a success was that IBM used parts from other manufacturers and made the PC an open architecture, so that other manufacturers could produce and sell peripheral components and compatible software. That spawned the whole “clone” market. So even after all these years, about 85% of computers sold are IBM compatibles and are still called PCs.
Happy anniversary PC!