website/content/museum/hitachi-mb-6885-basic-master-jr.md

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 image company company_name specs tabs photos adverts comments oc_id source MB-6885 / Basic Master Jr /media/museum/photos/hitachi_basicmasterjr_1.jpg /companies/hitachi Hitachi label value NAME MB-6885 / Basic Master Jr label value MANUFACTURER Hitachi label value TYPE Home Computer label value ORIGIN Japan label value YEAR 1982 label value BUILT IN LANGUAGE Unknown label value KEYBOARD Full-stroke keyboard label value CPU 6800 label value SPEED 0,8 MHz label value CO-PROCESSOR Unknown label value RAM 16 KB label value VRAM Unknown label value ROM 18KB label value TEXT MODES 32 x 24 label value GRAPHIC MODES 64 x 48 / 256 x 192 label value COLORS 8 label value SOUND 3 octaves label value I/O PORTS Printer port, Cassette MT interface, Expansion bus(mainly used for the color extension box) label value POWER SUPPLY Build-in PSU label value PRICE 89,800 yens photos adverts title subtitle text image COMPLETE SET-UP /media/museum/photos/hitachi_mb6885_1.jpg title subtitle text image AN ADVERTISING FOR THE BM JR /media/museum/pubs/bmjr.jpg 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. author date text 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.