---
title: Sanyo MBC 4000 - MBC 4050
categories:
- Computers
types:
- Professional Computer
origins:
- Japan
years:
- '1982'
cpus:
- Intel 8086
params:
  name: MBC 4000 - MBC 4050
  image: /media/museum/photos/sanyo_mbc4050_system_s1.jpg
  company: /companies/sanyo
  company_name: Sanyo
  specs:
  - label: NAME
    value: MBC 4000 - MBC 4050
  - label: MANUFACTURER
    value: Sanyo
  - label: TYPE
    value: Professional Computer
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1982'
  - label: END OF PRODUCTION
    value: Unknown
  - label: BUILT IN LANGUAGE
    value: None
  - label: KEYBOARD
    value: Typewriter type, 100 keys with numeric keypad, 15 function keys and arrow keys
  - label: CPU
    value: Intel 8086
  - label: SPEED
    value: Unknown
  - label: RAM
    value: 128 KB up to 384 KB
  - label: ROM
    value: 16 KB
  - label: TEXT MODES
    value: 80 chars. x 25 lines
  - label: GRAPHIC MODES
    value: None
  - label: COLORS
    value: Monochrome, green phosphore
  - label: SOUND
    value: Beeper
  - label: SIZE / WEIGHT
    value: Unknown
  - label: I/O PORTS
    value: Serial RS232, Parallel
  - label: BUILT IN MEDIA
    value: 1 (MBC-4000) or 2 (MBC-4050) 5.25'' 640 KB FDD
  - label: OS
    value: CP/M 86, MS-DOS 2.11
  - label: POWER SUPPLY
    value: Built-in PSU
  - label: PRICE
    value: From 5,500
  comments:
  - author: Helen (United Kingdom)
    date: Saturday 8th December 2012
    text: I remember the 4050 well. Top of Sanyo''s range of computers at the time. 640K RAM if I remember rightly$ sold at the time for around £2500- 3000 in UK I think$ Not many were sold though. May well have been supplied with Wordstar, Calcstar $ Datastar applications free of charge. It was first "real" computer I had access to (one at the office one at home). Well as Ad Manager for Sanyo at the time I had to know how to use the darned things in order to write the leaflets!
  - author: Harry (uk)
    date: Saturday 14th March 2009
    text: |-
      I recently aquired a complete mbc 4050, stripped it, cleaned and serviced the drives, reseated all ic''s ,and now this has to be the best,and quickest cp/m machine in my collection, and so quiet in use, the drives will read the disks almost instanty,and quietly, superb piece of engineering!\
      but why did they make the keyboard so big??
  - author: Dave (UK)
    date: Tuesday 28th March 2006
    text: I own one of these. When time allows later this year I'll post some info.
  oc_id: 1106
  source:
    url: https://web.archive.org/web/20230417020139/http://www.old-computers.com/museum/computer.asp?c=1106
    date: '2023-04-17'
---

The Sanyo MBC-4000 series succeeded to the [MBC-1150](/museum/sanyo-mbc-1100-1150/). It was the same all-in-one system including one (MBC-4000) or two (MBC-4050) 5.25" floppy drives, a monochrome display and a very complete keyboard.

It featured a true 16-bit Intel 8086 CPU and shipped with the CP/M-86 operating system as well as a Basic interpreter and a spreadsheet called Goal.\
MS-DOS 2.11 was also available on this machine.

Thanks to [John Papadopoulos's site](http://www.johnpap.net/not-en/Ypologistes.htm) for the picture.

<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>