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M > MOSTEK > MD   


Mostek
MD

The Mostek MD (from Micro Design) marked the entry of Mostek Company in the computer business.
It was a development system, aimed at promoting the family of Mostek boards, and built around several boards based on the 64 pin SDT bus.

The hearth of the system was the CPU board holding a Z80 (Mostek) processor, 10 KB of ROM and 8 KB of RAM. A large range of additional cards could be then added: dual Serial port, 32 KB RAM, Analogue/digital converter, 32-bit parallel port, and so on.

Using an ASCII video terminal, a basic one-board system allowed machine code programs to be assembled, debugged and run thanks to the built-in ROM monitor.

A complete system - like the one pictured - could manage two 8" floppy disc drives and run CP/M Operating System. However, these systems were mainly used for managing external devices in laboratories, universities and industry.

Special thanks to John Jenkins

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NAME  MD
MANUFACTURER  Mostek
TYPE  Professional Computer
ORIGIN  U.S.A.
YEAR  1979
BUILT IN LANGUAGE  Monitor in ROM
KEYBOARD  Depending of the video terminal used
CPU  Z80
SPEED  4 Mhz
CO-PROCESSOR  None
RAM  8 KB expandable to 64 KB
TEXT MODES  80 chars x 25 lines
SOUND  No sound
SIZE / WEIGHT  54 (W) x 60 (H) x 44 (D) cm. / Heavy!
I/O PORTS  2 x serial, 2 x A/D-D/A, 1 x Parallel, video terminal
BUILT IN MEDIA  2 x 8
OS  CP/M
POWER SUPPLY  3 x built-in power supply units (+24V for FDD / + 5V / +12 -12V)
PERIPHERALS  All STD Bus cards
PRICE  Unknown


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