Amstrad PC20

Released in 1988, the Amstrad PC20 repackaged the portable PPC512 architecture as a keyboard computer for the home. It combined an 8 MHz 8086 processor, 512KB of RAM, a 720KB 3.5-inch floppy drive and CGA/MDA-compatible graphics in a low-profile case intended to connect to a monitor or television.

MS-DOS 3.3, GEM, PPC Organizer and four games were supplied, but limited graphics and awkward expansion slots made the £300 machine uncompetitive. It was sold briefly alongside the nearly identical black Sinclair PC200.

Notable Features

• Computer and full-size keyboard combined in one case
• 8 MHz 8086 processor with optional 8087 coprocessor
• 720KB 3.5-inch floppy drive
• CGA and MDA-compatible graphics with optional RF television output
• MS-DOS, GEM, PPC Organizer and four games supplied

Historical Significance

• Home-oriented desktop derivative of the Amstrad PPC512
• Sold alongside the nearly identical Sinclair PC200
• One of Amstrad’s least successful and shortest-lived computer models

Collectors Notes

• A complete set should include the proprietary mouse and original software
• Expansion cards protrude unless the top access panel remains open
• Check the floppy drive, keyboard and external power supply
• Amstrad PC20 and Sinclair PC200 cases and branding differ

Specifications

Technical Information
Name	Amstrad PC20
Manufacturer	Amstrad
Launched	Friday, January 1, 1988
Discontinued	1988
Launch Price	£300
Country	United Kingdom
CPU	Intel-compatible 8086
Units Sold
Sound	Internal PC speaker
Expansion	Two 8-bit ISA slots with limited case clearance; joystick and mouse ports
Storage	One built-in 720KB 3.5-inch floppy drive; external 5.25-inch drive supported
Keyboard	Integrated 102-key AT-layout keyboard
Operating System	MS-DOS 3.3, GEM 3.0 and PPC Organizer
ROM	16KB system ROM
RAM	512KB, expandable to 640KB
Graphics	CGA and MDA-compatible chipset; 64KB video RAM
Display	CGA or MDA monitor; optional RF television output in some markets
CPU Speed	8 MHz