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title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Hitachi MB-6885 / Basic Master Jr
Computers
Home Computer
Japan
1982
6800
name company company_name specs tabs photos adverts comments oc_id source
MB-6885 / Basic Master Jr /companies/hitachi Hitachi
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NAME MB-6885 / Basic Master Jr
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MANUFACTURER Hitachi
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TYPE Home Computer
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ORIGIN Japan
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YEAR 1982
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BUILT IN LANGUAGE Unknown
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KEYBOARD Full-stroke keyboard
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CPU 6800
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SPEED 0,8 MHz
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CO-PROCESSOR Unknown
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RAM 16 KB
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VRAM Unknown
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ROM 18KB
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TEXT MODES 32 x 24
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GRAPHIC MODES 64 x 48 / 256 x 192
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COLORS 8
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SOUND 3 octaves
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I/O PORTS Printer port, Cassette MT interface, Expansion bus(mainly used for the color extension box)
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POWER SUPPLY Build-in PSU
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PRICE 89,800 yens
photos
adverts
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COMPLETE SET-UP null
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AN ADVERTISING FOR THE BM JR null
author date text
Hisayuki Nomura (Japan) Thursday 10th December 2020 (I''''ll write this as a message because "Add Info" does not work) MB6885 was successor of MB6881 (Basic Master Level II 2) . This machine had 256x192 graphics feature. Color display was also available with optional color-graphics adapter. These new feature was great in "Basic Master Level2 series" but not enough in Japanese market. Hitachi thought the MB-6885 as a hobby computer. But the hobby computer market was a fierce battlefield with NEC (PC-6001) , VIC-1001(Commodore) , JR-100 (Panasonic) and etc. MB-6885 was too weak for that battlefield.
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Summy Monday 23rd October 2017 I had this one, so I add some information $\ Speed : 0.8MHz, VRAM : None(sharing the main memory), I/O ports : Printer port, Cassette MT interface, Expansion bus(mainly used for the color extension box), Power Supply : Build-in PSU\ As I mentioned, there isn’t a Video RAM, so both the micro processor and the video interface use the main memory using tricky techniques.\ Its BASIC language is fully compatible with the MB-6880 BASIC Master Level II. In general, it was suitable for beginners. This PC was never a major PC, but it’s my favorite.
329
url date
https://web.archive.org/web/20230501140028/http://www.old-computers.com/museum/computer.asp?c=329 2023-05-01

MB6885 was successor of MB6881 (Basic Master Level II 2).

This machine had 256x192 graphics feature. Color display was also available with optional color-graphics adapter. These new feature was great in "Basic Master Level2 series" but not enough in Japanese market.

There isn’t a Video RAM, so both the micro processor and the video interface use the main memory using tricky techniques.

Hitachi thought the MB-6885 as a hobby computer. But the hobby computer market was a fierce battlefield with NEC (PC-6001) , VIC-1001(Commodore) , JR-100 (Panasonic) and etc. MB-6885 was too weak for that battlefield.

Thanks to Hisayuki Nomura for the info

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.