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Primo B

Microkey Kft (Hungary)

Previous: Primo A Next: Primo C (Pro/Primo)
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Name Primo B Microkey Kft 
Manufacturer Microkey Kft (Hungary) Type Desktop
Production start (mm-yyyy) 1984 Production end (mm-yyyy) -
RAM 16Kb ROM 16Kb
CPU U808 - 3,75 Mhz
Operating System BASIC
Text (Cols x Rows) 42x16
Graphics 256x192@ black & white
Sound One channel sound generator
Storage memory
Serial port Parallel port
Others port
  • Commodore type IEC serial interface, althought the ROM doesn't supports it.
  • Serial joystick interface
Original price   Currency original price
Units sold 1000
Note This is a enhanced version of the Primo-A. It has a real keyboard and some I/O implementations which left out from the series.
Only 1000 units built.
The CPU U808 made in the GDR, is a clone of the Zilog Z-80.
Configurations They exist three different versions:
  • Primo B-32: 16Kb RAM and 16Kb ROM.
  • Primo B-48: 32Kb RAM and 16Kb ROM.
  • Primo B-64: 48Kb RAM and 16Kb ROM.
User juanvm

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