---
title: Sony Hit-Bit G900F
categories:
- Computers
types:
- Home Computer
origins:
- Japan
years:
- '1985'
cpus:
- Zilog Z80A
params:
  name: Hit-Bit G900F
  company: /companies/sony
  company_name: Sony
  specs:
  - label: NAME
    value: Hit-Bit G900F
  - label: MANUFACTURER
    value: Sony
  - label: TYPE
    value: Home Computer
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1985'
  - label: BUILT IN LANGUAGE
    value: MSX Basic 2.0 (with extended instruction set)
  - label: KEYBOARD
    value: Full-stroke keyboard including 5 function keys, numeric keypad and 4 arrow keys
  - label: CPU
    value: Zilog Z80A
  - label: SPEED
    value: 3.58 MHz
  - label: CO-PROCESSOR
    value: 'Video Display Processor : V9938 (MSX-VIDEO)'
  - label: RAM
    value: 64 KB
  - label: VRAM
    value: 128 KB
  - label: ROM
    value: 94 KB
  - label: TEXT MODES
    value: 40 x 24 / 32 x 24
  - label: GRAPHIC MODES
    value: 64 x 48 / 256 x 192 / 256 x 212 / 512 x 212
  - label: COLORS
    value: '512'
  - label: SOUND
    value: 3 channels, 8 octaves
  - label: I/O PORTS
    value: 2 joystick sockets, 2 cartridge slots, Tape (1200/2400 baud), RGB (scart), Composite Video, Centronics, RS-232 serial port, Audio in/out, Video In connector for VideoTizer (HBI-G 900)
  - label: BUILT IN MEDIA
    value: 3.5'' disk unit (720 KB double side, double density)
  - label: OS
    value: MSX Basic 2.0 (with extended instruction set)
  - label: PRICE
    value: |-
      HB-G900F : 10.600FF\
      HBI-G900 Videotizer : 8.000FF\
      Multiteloper : 5.000FF
  tabs:
  - photos
  - emulators
  - links
  photos:
  - title: REAR
    subtitle: ''
    text: ''
    image: null
  - title: INSIDE
    subtitle: ''
    text: ''
    image: null
  emulators:
  - title: BlueMSX
    url: http://www.bluemsx.com/
    platform: Windows
    text: Excellent free MSX emulator
  - title: fMSX32
    url: HTTP://WWW.RETRODEV.INFO/
    platform: Other platform
    text: The excellent fMSX, but ported onto the GamePark GP32 handheld console.
  - title: openMSX - The MSX emulator that aims for perfection.
    url: http://openmsx.sourceforge.net/
    platform: Multiplatform
    text: This new MSX emulator can reproduce, among many other MSX, MSX2and MSX2+ machines, both Panasonic Turbo-R models. Be sure to get the catapult frontend and the system roms from FUNET.
  links:
  - title: MSX Faq
    url: http://www.faq.msxnet.org
    text: Here, you can find near all hardware pieces related to MSX.
  related:
  - /museum/canon-v-25
  - /museum/jvc-hc-95
  - /museum/kawai-kmc-5000
  - /museum/msx-2
  - /museum/panasonic-fs-a1
  - /museum/panasonic-fs-a1f
  - /museum/sony-hit-bit-f1xd
  - /museum/sony-hit-bit-f500
  - /museum/sony-hit-bit-f700
  - /museum/sony-hit-bit-f9
  oc_id: 790
  source:
    url: https://web.archive.org/web/20230603120324/http://www.old-computers.com/museum/computer.asp?c=790
    date: '2023-06-03'
---

The HB-G 900F was a special [MSX2 model](/museum/msx-2/) aimed at the professional market. It has built in features to pilot Genlock (for video capture) and laserdisks.

The case and keyboard of the HB-G900 is pretty similar to the one of the [HB-500](/museum/sony-hit-bit-f500/) and [HB-700](/museum/sony-hit-bit-f700/). The main differences are the extra video connectors and the built-in RS-232 port. The second cartridge slot found on the HB-500 and HB-700 is replaced by the diskdrive and a second bay remains available for another diskdrive. The second cartridge slot can be found at the back of the unit.

The extended ROM (94 KB total) is holding the BASIC instructions to pilot the Genlock (HBI-G900), RS-232 and laserdisks.

The HBI-G900 (Videotizer) unit sold separately was used to capture external pictureq through a PAL encoder and evenually mix it with pictures generated by the computer.

A special version of the software Multiteloper was developped to take advantage of the special features of this computer. The price of the software and the hardware was strictly limiting them to video edition professionals.

The HB-G900F was later replaced by more advanced models such as the HB-F900 and HB-G900AP.

The coolest thing is that one of these systems could be found in the MIR space station, apparently used for video capture. Pictures and videos showing the HB-G900 and HBI-G900 in the space station, can be found on this [site](http://msx.gnu-linux.net/msx-in-space/).

Pictures and info from Olivier Hustin.