---
title: Cromemco Systeme 0
categories:
- Computers
types:
- Professional Computer
origins:
- U.S.A.
years:
- '1982'
cpus:
- Z80A
params:
  name: Systeme 0
  image: /media/museum/photos/cromemco_system0_system_1.jpg
  company: /companies/cromemco
  company_name: Cromemco
  specs:
  - label: NAME
    value: Systeme 0
  - label: MANUFACTURER
    value: Cromemco
  - label: TYPE
    value: Professional Computer
  - label: ORIGIN
    value: U.S.A.
  - label: YEAR
    value: '1982'
  - label: BUILT IN LANGUAGE
    value: None
  - label: KEYBOARD
    value: Video terminal
  - label: CPU
    value: Z80A
  - label: SPEED
    value: 4 Mhz
  - label: CO-PROCESSOR
    value: None
  - label: RAM
    value: From 1 KB to 512 KB
  - label: ROM
    value: 4 KB (Monitor)
  - label: TEXT MODES
    value: Depending on the video terminal used
  - label: SIZE / WEIGHT
    value: Unknown
  - label: I/O PORTS
    value: Serial RS232, Parallel
  - label: BUILT IN MEDIA
    value: Optional dual 5.25'' 390 KB FDD unit
  - label: OS
    value: CP/M, Cromix
  - label: POWER SUPPLY
    value: Built-in Power Supply Unit
  - label: PRICE
    value: |-
      Basic System 0: $1200\
      System 0/D: $4700
  forum_thread: 807
  oc_id: 826
  source:
    url: https://web.archive.org/web/20230529192055/http://www.old-computers.com/museum/computer.asp?c=826
    date: '2023-05-29'
---

The System 0 was one of the last and lowest cost system from Cromemco.

The basic unit was a six-slot S-100 board with an all-in-one CPU board and power supply. The smallest system featured 1 KB RAM and 4 KB ROM monitor, as well as serial and parallel ports.

The bigger system, designated Zero/D, had 64 KB of RAM and separate dual floppy disc drives unit. It was sold with CP/M operating system, printer drivers and self test diagnostics.

It was also possible to use a version of Unix called Cromix if a further 64 KB of RAM was installed.

<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>