but with limited upgradability and a slower hard drive. The Compaq Portable III was another AT-compatible computer released in 1987. It was advertised as being much smaller and lighter than the previous portable x86-PCs, however it was still quite large by today's standards. Three models were announced at release. The Model 1 had a list price of and was equipped with a Intel 80286, RAM, floppy, and a amber colored gas-plasma display. Other options included the Model 20 at which added a hard disk, or for the Model 40 with the upgraded hard disk. There was also an optional ISA Expansion chassis allowed for 2 full length 16-bit ISA add-in cards for . Power is supplied using a mains electricity outlet, no battery exists. The Compaq Portable III, Compaq Portable 386, Compaq Portable 486 and Compaq Portable 486c were later in the series. References External links Old Computers - Compaq Portable CED in the History of Media Technology - Compaq Portable Obsolete Computer Museum - Compaq Portable description See also Compaq SLT laptop series Compaq LTE notebook series - initially co-developed with Citizen Watch Company Compaq Contura value notebook series Compaq Contura Aero subnotebook series Compaq Aero handheld series Compaq Concerto pen table convertible IBM PC compatibles