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H > HITACHI  > MB-6890 / Basic Master Level 3   


Hitachi
MB-6890 / Basic Master Level 3

This japanese computer seems quite powerful. The main board is located into the main case, under the monitor.

Inside this main case there are 6 expansion slots which is quite enough ! Thus a lot of expansion boards were available (disk, printers, 8088, Z80 boards, etc).

An interesting feature is that there's a little trap-door on the keyboard which reveals some cool control switches : a power switch, a text mode switch (80 / 40 columns), a reset button and volume control knob. Quite useful !

NAME  MB-6890 / Basic Master Level 3
MANUFACTURER  Hitachi
TYPE  Home Computer
ORIGIN  Japan
YEAR  1980
BUILT IN LANGUAGE  Hitachi Level-3 Basic Version 1.0 (Copyright Microsoft)
KEYBOARD  QWERTY full-stroke keyboard, separated numeric keypad, 5 function keys
CPU  Motorola 6809
SPEED  1 Mhz
RAM  48k ?
VRAM  16k
ROM  24k (Basic Interpreter)
TEXT MODES  80 x 28 / 40 x 25
GRAPHIC MODES  80 x 100 / 160 x 100 / 160 x 200 / 320 x 200 / 640 x 200
COLORS  8
SOUND  Unknown
I/O PORTS  6 expansion slots, RS232c, Tape-recorder
POWER SUPPLY  Built-in PSU
PERIPHERALS  Tape-recorder, printer interface board, light-pen, Chinese character ROM board, 8088 CPU board, Disk Interface board, Z80 CPU board, RAM expansion boards

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