The Sinclair PC 200 was one of the last computers built under the Sinclair brand (along with the PC-500). In fact it was not a Sinclair at all, but a desktop version of the Amstrad PPC-512.
The case bore a striking resemblance to the Atari 520 ST case. It had a built-in 3.5" floppy drive on the right and mouse and joystick ports under the keyboard. And indeed the PC-200 was officially marketed as an Atari 520-ST competitor : same price, same disk drive, same memory (512k) and same design.
But compared to the Amiga and 520-ST, the PC-200 looked like a naked pea, even for an IBM compatible. Its two ISA slots were not enough to reasonably expand the system. Standard IBM expansion cards were nearly twice the height of the computer, thus the computer needed to be opened permanently!
In 1988, the MDA and CGA graphic modes were quite obsolete as most PC systems had adopted the more convenient EGA mode.
An interesting feature of the PC-200 was a TV output socket at the rear of the system, quite rare for a PC compatible system. It shows that Amstrad wanted to market the PC-200 as a low-range PC compatible system for the whole family.
At the same time, Amstrad presented the PC 20, which was in fact the same computer as the Sinclair PC 200 except for the color of the case (black for the Sinclair, white for the Amstrad) and the TV output (not implemented on the PC-20).
Angus WR Gullivers reports to us :
The Sinclair PC200 had absolutely no success, it bombed and was withdrawn very quickly from the market. It was advertised for only about 3 months. It was released to poor reviews because of its lack of expansion possibilities and use of CGA graphics when EGA and VGA were already available.
BUILT IN LANGUAGE
MS-DOS, Digital Research GEM desktop, Organiser software
Full-stroke keyboard with numeric keypad (102 keys)
optional 8087 maths coprocessor
512 KB (up to 640 KB)
40 or 80 columns x 25 lines
320 x 200 / 640 x 200, CGA and MDA graphic modes
Centronics, RGB, RS232, Mouse, Joystick, 8 bit ISA slots (2)