Zenith Minisport

The Zenith Minisport (styled as minisPORT) is a subnotebook based on an 80C88 CMOS CPU running at two software selectable speeds: 4.77 MHz or 8 MHz. It was released in 1989 by Zenith Data Systems (ZDS).
It had 1 (model ZL-1) or 2 MB (model ZL-2) of RAM, ran MS-DOS 3.3 Plus from ROM, had a 640×200 LCD display and CGA and composite monochrome outputs. The Minisport was one of the first actual subnotebooks, apart from a contemporary NEC model.
Dimensions.
The Minisport is 12.5-inch wide × 9.8-inch deep × 1.29-inch tall (318 mm × 249 mm × 33 mm), (lid closed), 7.75-inch (197 mm) tall (lid open). It weighs 5.9 lb (2.7 kg) with the battery.