The MEK6800D2 was a development board for the Motorola 6800 microprocessor, produced by Motorola in 1976. It featured a keyboard with hexadecimal keys and a LED display, but also featured an RS-232 asynchronous serial interface for a Teletype or other terminal. Data and programs could be loaded from and saved to an audio cassette tape. There was an on-board monitor program called JBUG (analogous to an operating system on a modern computer) fitted in a 1K byte ROM, and the maximum RAM capacity on board was 512 bytes, but this could be expanded via the Motorola EXORciser computer bus interface.
There was also a parallel bus interface for general purpose I/O.
Another popular monitor program for this system is called MIKBUG.
- http://www.vintagecomputer.net/motorola/mek6800d2/ Vintage Computer Photos subject: motorola mek6800d2] vintagecomputer.net
- Leventhal, Lance A. Microcomputer experimentation with the Motorola MEK6800D2. Prentice-Hall, ISBN 0-13-580761-1
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