Date: 1981. Intel 4.77MHz 8088 processor (16 bit segmented addressing, 8-bit data paths). Two 5.25" 160K floppy diskette drives. Basic in ROM. Boots DOS 1.0 from diskette. 16-64K RAM. Cassette recorder interface. Green 12"-diameter screen capable of monochrome graphics. No hard drive (adding hard drives to the PC would be a cottage industry until the IBM PC/XT was announced).