Kaypro 4 (81-004)

"We just started shipping the KAYPRO 4 which has double sided floppy disks for more memory."
(CommuniKay, June 1983)

"Like the Kaypro II, which competes directly against Osborne computers, the new Kaypro 4 contains 64,000 bytes, or characters, of internal memory and is powered by an 8-bit microprocessor. But the new model contains twice the memory capacity in its disk drives, which transfer information for permanent storage on floppy disks. The new drives have a maximum capacity of about 800,000 characters. ... The new machine will sell for $1,995, the company said."
(New York Times, June 4, 1983)

"The Kaypro Corporation, a Solana Beach, Calif., computer manufacturer, announced that it had reduced the price of its Kaypro 4 personal portable computer by $200, to $1,795. Kaypro said the price reduction, which does not affect the Kaypro 10 model, is a result of supplier cost reductions in both disk drives and video display screens, coupled with increasing volume orders. The Kaypro 4, which uses double-density disks, features 392K of formatted storage per disk for a total of 784K for the unit's two disk drives."
(New York Times, October 8, 1983)

This machine's FCC ID was issued Jan. 4, 1984.