The IBM PC, however, wasn't released for another four years in 1981. The "1977 Trinity" phrase was purportedly coined and popularized by American microcomputer magazine "Byte" (1975-1998 ...

Known as the "1977 Trinity," the Apple II, Radio Shack TRS-80 and Commodore PET each used a different processor and OS. Walking by store windows, people were very surprised to see computers being ...