Amstrad PPC512

In 1988 Amstrad attempted to make the first affordable portable personal computer with the PPC512 and PPC640.

It ran MS-DOS on an 8 MHz NEC V30 processor, 512kb RAM and had one or two internal 720kb 3.5″ Floppy drives.  The built-in screen was a non-backlit CGA Monochrome unit that could emulate the Monochrome Display Adapter or Color Graphics Adapter standard.  These machines were based on the Sinclair PC200, and the PC1512 rebadged as the Sinclair PC500.