yann64andClaude Opus 5.5
b274874139
1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
90 lines
2.5 KiB
Markdown
90 lines
2.5 KiB
Markdown
---
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title: Hitachi MB-6885 / Basic Master Jr
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- Japan
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years:
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- '1982'
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cpus:
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- '6800'
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params:
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name: MB-6885 / Basic Master Jr
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image: /media/museum/photos/hitachi_basicmasterjr_1.jpg
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company: /companies/hitachi
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company_name: Hitachi
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specs:
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- label: NAME
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value: MB-6885 / Basic Master Jr
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- label: MANUFACTURER
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value: Hitachi
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: Japan
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- label: YEAR
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value: '1982'
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- label: BUILT IN LANGUAGE
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value: Unknown
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- label: KEYBOARD
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value: Full-stroke keyboard
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- label: CPU
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value: '6800'
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- label: SPEED
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value: 0,8 MHz
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- label: CO-PROCESSOR
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value: Unknown
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- label: RAM
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value: 16 KB
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- label: VRAM
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value: Unknown
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- label: ROM
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value: 18KB
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- label: TEXT MODES
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value: 32 x 24
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- label: GRAPHIC MODES
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value: 64 x 48 / 256 x 192
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- label: COLORS
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value: '8'
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- label: SOUND
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value: 3 octaves
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- label: I/O PORTS
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value: Printer port, Cassette MT interface, Expansion bus(mainly used for the color extension box)
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- label: POWER SUPPLY
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value: Build-in PSU
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- label: PRICE
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value: 89,800 yens
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tabs:
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- photos
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- adverts
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forum_thread: 334
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photos:
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- title: COMPLETE SET-UP
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subtitle: ''
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text: ''
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image: /media/museum/photos/hitachi_mb6885_1.jpg
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adverts:
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- title: AN ADVERTISING FOR THE BM JR
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subtitle: ''
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text: ''
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image: /media/museum/pubs/bmjr.jpg
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oc_id: 329
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source:
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url: https://web.archive.org/web/20230501140028/http://www.old-computers.com/museum/computer.asp?c=329
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date: '2023-05-01'
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---
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MB6885 was successor of MB6881 (Basic Master Level II 2).
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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.
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There isn’t a Video RAM, so both the micro processor and the video interface use the main memory using tricky techniques.
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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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Thanks to Hisayuki Nomura for the info
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<table> <tr> <td></td> <td>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.</td> <td></td> </tr> </table>
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