---
title: Fujitsu FM 77 AV
categories:
- Computers
types:
- Home Computer
origins:
- Japan
years:
- '1985'
cpus:
- MBL 68B09E x 2
params:
  name: FM 77 AV
  image: /media/museum/photos/fujitsu_77av3c_1.jpg
  company: /companies/fujitsu
  company_name: Fujitsu
  specs:
  - label: NAME
    value: FM 77 AV
  - label: MANUFACTURER
    value: Fujitsu
  - label: TYPE
    value: Home Computer
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1985'
  - label: BUILT IN LANGUAGE
    value: F-BASIC V3.0
  - label: KEYBOARD
    value: Infra red professional keyboard with numeric keypad, 100 keys, JIS standard
  - label: CPU
    value: MBL 68B09E x 2
  - label: SPEED
    value: 2 MHz
  - label: RAM
    value: 128 kb (up to 192 kb)
  - label: VRAM
    value: 96 kb
  - label: ROM
    value: 72 kb (in which 32 kb are used to store the F-BASIC)
  - label: TEXT MODES
    value: |-
      40 x 20, 40 x 25, 80 x 20, 80 x 25 (8 colors each)\
      Letter matrix : 8 x 8
  - label: GRAPHIC MODES
    value: |-
      640 x 200 (2 colors), 320 x 200 (4096 colors)\
      Multipaging possibilities
  - label: COLORS
    value: '4096'
  - label: SOUND
    value: 3 FM channels + 3 PSG channels
  - label: SIZE / WEIGHT
    value: |-
      Main unit : 363 (W) x 380 (D) x 101.5 (H) mm\
      Keyboard : 410 (W) x 192 (D) x 38 (H) mm
  - label: I/O PORTS
    value: RGB analog video output, RGB TTL video output, Parallel/Centronics interface, Tape-recorder interface (1600 baud), two joystick ports, 4 expansion ports
  - label: BUILT IN MEDIA
    value: 3.5'' disk-drive (DD, 320 kb), one for the AV-1, and two for the AV-2 model.
  - label: POWER SUPPLY
    value: PSU built-in
  - label: PRICE
    value: |-
      FM 77 AV-1 : 128,000 Yen (Japan, 1985)\
      FM 77 AV-2 : 158,000 Yen (Japan, 1985)
  tabs:
  - photos
  - hardware
  - software
  - links
  forum_thread: 372
  photos:
  - title: FM77 AV
    subtitle: ''
    text: ''
    image: /media/museum/photos/fujitsu_fm77av_2.jpg
  - title: 'ZOOM #1'
    subtitle: ''
    text: ''
    image: /media/museum/photos/fujitsu_fm77av_detail_1.jpg
  - title: 'ZOOM #2'
    subtitle: ''
    text: ''
    image: /media/museum/photos/fujitsu_fm77av_detail_2.jpg
  hardware:
  - title: MB27621
    subtitle: Twin 5.25'' disk drive
    text: ''
    image: /media/museum/hardware/fujitsu_fm77_mb27621_1.jpg
  - title: MB27621
    subtitle: Rear
    text: ''
    image: /media/museum/hardware/fujitsu_fm77_mb27621_rear.jpg
  screenshots:
  - title: SOME SOFTWARE
    subtitle: ''
    text: ''
    image: /media/museum/software/fujitsu_fm77av_soft_1.jpg
  links:
  - title: Junya Kubota's Museum
    url: http://my.reset.jp/~toragiku/kopa/fm77av.htm
    text: Junya has a page about the FM-77 AV2. In fact most of our infos come from him !
  oc_id: 373
  source:
    url: https://web.archive.org/web/20230607061423/http://www.old-computers.com/museum/computer.asp?c=373
    date: '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](http://www3.wind.ne.jp/toragiku/).