Microkey 4500 -- 6809 Single Board Computer

The Microkey 4500 single board computer was sold by Microkey Ltd. in England.

Microkey 4500 features:

• 2 MHz 6809 microprocessor with 128K RAM standard (2 banks of 64KB)
• optional W65SC816 can address 512KB RAM
• up to 32KB EPROM (2 sockets)
• DMA
• floppy disk controller for 3½" and 5¼" drives, incl. 500kbps data rate
• 16-color high resolution graphics, or various resolutions of monochrome video
• serial and parallel ports
• DIN connectors for keyboard port (IBM compatible)
• fiber optic serial interface option
• FLEX and polyFORTH operating systems supported
• cost U$450 for an assembled board with 128K RAM

The only information on the Microkey 4500 I have found so far is from an advertisement and staff and user reviews in the September 1985 issue of '68' Micro Journal magazine.

"FLEX" was a trademark of Technical System Consultants (TSC).

Last revised 2024-Apr-04 12:39 PDT.
Copyright 2019- David C. Wiens.