---
title: Altos Computer Systems Serie 5
categories:
- Computers
types:
- Professional Computer
origins:
- U.S.A.
years:
- '1982'
cpus:
- Z80A
params:
  name: Serie 5
  company: /companies/altos-computer-systems
  company_name: Altos Computer Systems
  specs:
  - label: NAME
    value: Serie 5
  - label: MANUFACTURER
    value: Altos Computer Systems
  - label: TYPE
    value: Professional Computer
  - label: ORIGIN
    value: U.S.A.
  - label: YEAR
    value: April 1982
  - label: CPU
    value: Z80A
  - label: RAM
    value: 192 Kb
  - label: ROM
    value: Unknown
  - label: TEXT MODES
    value: 80x24
  - label: GRAPHIC MODES
    value: None
  - label: COLORS
    value: Monochrome display
  - label: I/O PORTS
    value: Network (X25 protocol)
  - label: BUILT IN MEDIA
    value: |-
      Floppy-drives : 1 or 2 x 5.25'' disk-drives (1 Mb each)\
      Hard-disk : Winchester 5 Mb (10 Mb optional for the Serie 5D)
  - label: OS
    value: CP/M, MP/M II and Oasis
  - label: POWER SUPPLY
    value: Built-in PSU
  - label: PRICE
    value: 44000 FF (France, June 1982)
  tabs:
  - photos
  - adverts
  photos:
  - title: SERIE 5-5AD OPENED
    subtitle: ''
    text: ''
    image: null
  - title: SERIE 5-5AD REAR
    subtitle: ''
    text: We can spot the output for 4 users.
    image: null
  - title: THE SERIE 5
    subtitle: ''
    text: This is a picture extracted from a french advert.
    image: null
  adverts:
  - title: US ADVERT (APRIL 1982)
    subtitle: ''
    text: |-
      In this advert, Altos emphasized its software package offer.

      advert said:

      You also get the new ALTOS ACCOUNTANT, a completely integrated business accounting system...

      There's more. You get the unique ALTOS COMPUTER TUTOR, the self-teaching tutorial that provides simple, self paced, step-by-step training that make using the computer easy...
    image: null
  - title: FRENCH AD
    subtitle: ''
    text: This advert was for the Serie 5 and the ACS-8000 systems.
    image: null
  - title: U.S. AD (1983)
    subtitle: ''
    text: ''
    image: null
  - title: SAME IN GERMAN
    subtitle: ''
    text: ''
    image: null
  comments:
  - author: Eric Scott (Canada)
    date: Friday 6th January 2023
    text: I had an old System 5 when I was a kid. It had a 5 1/4" floppy and a full Hight 5.5 MB hard drive on it. It ran MP/M and we had three terminals attached to it. My Dad built and programmed a complete POS system for our continence store. We ran the system until the early 1990''s.
  - author: Göran Axelsson (Sweden)
    date: Thursday 26th July 2012
    text: I just got an ALTOS serie 5-15DE and it came with two 5.25" floppy drives. I haven''t started it yet so I can''t tell anything about the capacity.
  - author: George Barna
    date: Friday 8th June 2012
    text: I had one of these. It had a 2 x 5 1/4" floppy drives, NOT 8", of 800Kb capacity each.
  oc_id: 455
  source:
    url: https://web.archive.org/web/20230603020928/http://www.old-computers.com/museum/computer.asp?c=455
    date: '2023-06-03'
---

The Serie 5 was a CP/M based multi-user system. It could support from 1 to 3 users.

It had a 5 MB Winchester hard-drive and could be upgraded with a 10 MB hard-drive (for the Serie 5D only). It could use CP/M, MP/M II or Oasis as its operating system.

The serie 5 was quite similar to the [Altos ACS-8000](/museum/altos-computer-systems-acs-8000/), but with 5.25'' disk drives instead of the 8'' floppies.