This is Apple I. The first Apple computer. Steve Jobs and Steve Wozniak, the most famous members of the Homebrew Computer Club, designed it over 30 years ago, in It was mostly a kit computer. Users bought the workings and built their own case.
The IBM PC XT 286 is an intermediate computer between the IBM PC XT and the IBM PC AT . It had a very short career because most of its features can be found in the PC AT. Contrary to the PC XT, it has a saved clock and a calendar.