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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import)
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2026-10-13 17:26:43 +02:00

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title, categories, types, origins, years, cpus, params
title categories types origins years cpus params
Fujitsu FM 77 AV
Computers
Home Computer
Japan
1985
MBL 68B09E x 2
name image company company_name specs tabs forum_thread photos hardware screenshots links oc_id source
FM 77 AV /media/museum/photos/fujitsu_77av3c_1.jpg /companies/fujitsu Fujitsu
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NAME FM 77 AV
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MANUFACTURER Fujitsu
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TYPE Home Computer
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ORIGIN Japan
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YEAR 1985
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BUILT IN LANGUAGE F-BASIC V3.0
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KEYBOARD Infra red professional keyboard with numeric keypad, 100 keys, JIS standard
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CPU MBL 68B09E x 2
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SPEED 2 MHz
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RAM 128 kb (up to 192 kb)
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VRAM 96 kb
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ROM 72 kb (in which 32 kb are used to store the F-BASIC)
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TEXT MODES 40 x 20, 40 x 25, 80 x 20, 80 x 25 (8 colors each)\ Letter matrix : 8 x 8
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GRAPHIC MODES 640 x 200 (2 colors), 320 x 200 (4096 colors)\ Multipaging possibilities
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COLORS 4096
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SOUND 3 FM channels + 3 PSG channels
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SIZE / WEIGHT Main unit : 363 (W) x 380 (D) x 101.5 (H) mm\ Keyboard : 410 (W) x 192 (D) x 38 (H) mm
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I/O PORTS RGB analog video output, RGB TTL video output, Parallel/Centronics interface, Tape-recorder interface (1600 baud), two joystick ports, 4 expansion ports
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BUILT IN MEDIA 3.5'' disk-drive (DD, 320 kb), one for the AV-1, and two for the AV-2 model.
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POWER SUPPLY PSU built-in
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PRICE FM 77 AV-1 : 128,000 Yen (Japan, 1985)\ FM 77 AV-2 : 158,000 Yen (Japan, 1985)
photos
hardware
software
links
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FM77 AV /media/museum/photos/fujitsu_fm77av_2.jpg
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ZOOM #1 /media/museum/photos/fujitsu_fm77av_detail_1.jpg
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ZOOM #2 /media/museum/photos/fujitsu_fm77av_detail_2.jpg
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MB27621 Twin 5.25'' disk drive /media/museum/hardware/fujitsu_fm77_mb27621_1.jpg
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MB27621 Rear /media/museum/hardware/fujitsu_fm77_mb27621_rear.jpg
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SOME SOFTWARE /media/museum/software/fujitsu_fm77av_soft_1.jpg
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Junya Kubota's Museum http://my.reset.jp/~toragiku/kopa/fm77av.htm Junya has a page about the FM-77 AV2. In fact most of our infos come from him !
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https://web.archive.org/web/20230607061423/http://www.old-computers.com/museum/computer.asp?c=373 2023-06-07

The FM 77 AV was an impressive system in 1985. It's a good example of what was developped in Japan and we never heard of in the rest of the world.

The system has great audio and video features, hence the AV for "Audio and Video". It can display 640 x 200 pixels in two colors, or 320 x 200 in 4096 colors ! There is even a multipage mode where you can define two 460 x 200 screens with 8 colors each, or six 640 x 200 monochrome screens !

There are a lot of graphical symbols already stored in memory (each symbol / letter is composed by 8 x 8 pixels) : 69 alphanumeric symbols, 63 kakatana signs, 63 hiragana signs and 62 graphic symbols. Moreover, the system is capable of displaying 3418 chinese and asiatic characters with a 16 x 16 character matrix (text resolution is thus of 40 x 12).

Last but not least, the FM 77 AV offers superimposition features...
On the sound side, it offers three FM voices and three more PSG voices. Other cool features include infra-red keyboard and built-in real time clock.

There were two models : the AV-1 which has one 3.5" disk-drive (double density) built-in and the AV-2 which is equiped with two of these drives.

Source : Junya Kubota's museum.