The PortaBrain was a small unit housing a motherboard and storage devices. It had a handle for easy carrying, but required a connection to a terminal for video and a keyboard. Paradyne was primarily a manufacturer of Unix-based multi-user systems.
Paradyne PortaBrain (1983, desktop)
Base Configuration: 4MHz Z80A CPU, CP/M, ROM cartridge slot, 256K RAM, 16K ROM, 5.25-inch floppy disk drive, two RS-232C and one parallel port
Size/Weight: 6 lbs.