---
title: Fujitsu FM 77 AV 20
categories:
- Computers
types:
- Home Computer
origins:
- Japan
years:
- '1986'
cpus:
- MBL 68B09E x 2
params:
  name: FM 77 AV 20
  image: /media/museum/photos/fujitsu_77av20-1_1.jpg
  company: /companies/fujitsu
  company_name: Fujitsu
  specs:
  - label: NAME
    value: FM 77 AV 20
  - label: MANUFACTURER
    value: Fujitsu
  - label: TYPE
    value: Home Computer
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1986'
  - label: BUILT IN LANGUAGE
    value: Unknown
  - label: KEYBOARD
    value: Infra red professionnal keyboard with numeric keypad, arrow keys and function keys
  - label: CPU
    value: MBL 68B09E x 2
  - label: SPEED
    value: 2 Mhz
  - label: CO-PROCESSOR
    value: Unknown
  - label: RAM
    value: 128 kb (up to 192 kb)
  - label: VRAM
    value: 96 kb
  - label: ROM
    value: Unknown
  - label: TEXT MODES
    value: Unknown
  - label: GRAPHIC MODES
    value: 640 x 200 (8 colors), 320 x 200 (4096 colors)
  - label: COLORS
    value: '4096'
  - label: SOUND
    value: 3 FM voices + 3 PSG voices
  - label: SIZE / WEIGHT
    value: Unknown
  - label: I/O PORTS
    value: RS232x, parallel/centronics, external FDD, stereo audio output, scart video output...
  - label: BUILT IN MEDIA
    value: one (FM 77 AV 20-1) or two (FM 77 AV 20-2) 3.5'' disk-drives
  - label: OS
    value: Unknown
  - label: POWER SUPPLY
    value: PSU built-in
  - label: PERIPHERALS
    value: Unknown
  - label: PRICE
    value: |-
      FM-77 AV 20-2 : 168,000 yen (Japan, 1986)\
      FM-77 AV 20-1 : 138,000 Yen (Japan, 1986)
  tabs:
  - photos
  photos:
  - title: FRONT
    subtitle: ''
    text: Notice the two joystick connectors at the right hand side...
    image: /media/museum/photos/fujitsu_fm77av20_front.jpg
  - title: BACK
    subtitle: ''
    text: So many connectors...
    image: /media/museum/photos/fujitsu_fm77av20_rear.jpg
  - title: KEYBOARD
    subtitle: ''
    text: But why is the spacebar separated into three parts ?
    image: /media/museum/photos/fujitsu_fm77av20_keyboard.jpg
  oc_id: 326
  source:
    url: https://web.archive.org/web/20230603005547/http://www.old-computers.com/museum/computer.asp?c=326
    date: '2023-06-03'
---

The only difference compared to the [FM 77 AV](/museum/fujitsu-fm-77-av/) seems to be an improved 3.5" disk-drive with a capacity of 640 kb.

Like the FM 77 AV, there were two models : the FM 77 AV 20-1 with one disk-drive, and the FM 77 AV 20-2 with two.

<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>