The CP/M 2.2 Companion could serve as a standalone computer with the addition of a terminal, or as a means of expanding a CP/M-based portable computer.
Companion Computers CP/M 2.2 Companion (1983, desktop)
Original Retail Price: $1,095
Base Configuration: Z80A CPU, CP/M 2.2, expansion slot, 256K RAM, 5.25-inch floppy disk drive, two RS-232C and one parallel port
Size/Weight: 7 x 4 x 14 inches, 8 lbs.
Important Options: dual external 5.25-inch floppy disk drives