The Otrona Attache is a portable CP/M based computer with 64 K of memory and was built by a firm in Colorado. The Attache is 12 inches wide, 13.6 inches deep, and 5.75 inches high. It weighs 18 pounds. It includes a 5.5 inch 80x24 line green on black built in sceen and a keyboard that is detachable and attaches over the front of the display and drives. The central processor unit is a Z80A and runs at 4 Mhz. The machine is also capable of running MS-DOS through a16-bit add-on card. It can even display bit mapped graphics at a resolution of 320x240.
Magazine Article 1983 page 54