---
title: NCR Decision Mate V
categories:
- Computers
types:
- Professional Computer
origins:
- U.S.A.
years:
- '1984'
cpus:
- Zilog Z80 - Optional Intel 8088
params:
  name: Decision Mate V
  image: /media/museum/photos/ncr_decisionmate_system_s1.jpg
  company: /companies/ncr
  company_name: NCR
  specs:
  - label: NAME
    value: Decision Mate V
  - label: MANUFACTURER
    value: NCR
  - label: TYPE
    value: Professional Computer
  - label: ORIGIN
    value: U.S.A.
  - label: YEAR
    value: '1984'
  - label: BUILT IN LANGUAGE
    value: None
  - label: KEYBOARD
    value: Typewriter type 91 keys with 20 programmable function keys and numeric keypad
  - label: CPU
    value: Zilog Z80 - Optional Intel 8088 or Motorola 68008
  - label: SPEED
    value: 4.88 MHz (8088) / 4 MHz (Z80)
  - label: RAM
    value: 64 kb, 128 kb, 256 kb or 512 kb depending of models (through expansion cards)
  - label: VRAM
    value: 32 KB (monochrome mode) or 96 KB (colour mode)
  - label: ROM
    value: Unknown
  - label: TEXT MODES
    value: 40 or 80 columns x 25 lines
  - label: GRAPHIC MODES
    value: 576 x 432 dots
  - label: COLORS
    value: Monochrome built-in display (green / black)
  - label: SOUND
    value: Beeper
  - label: I/O PORTS
    value: Centronics, RS232, 7 expansion slots
  - label: BUILT IN MEDIA
    value: One or two floppy disk drives (320 KB each), 10 to 30 MB hard disk
  - label: OS
    value: MSDOS 2.1, CP/M or CP/M 86 or CP/M 68K
  - label: POWER SUPPLY
    value: Built-in power supply unit
  - label: PRICE
    value: Unknown
  tabs:
  - photos
  - hardware
  - links
  forum_thread: 305
  photos:
  - title: EXPANSION SLOTS
    subtitle: ''
    text: |-
      **(1)** 2 Parallel expansion cartridges\
      **(2)** Keyboard cable
    image: /media/museum/photos/ncr_decisionmate_backside_s1.jpg
  hardware:
  - title: 64 TO 256K RAM CARTRIDGE
    subtitle: ''
    text: Needed to run MS-DOS OS and software.
    image: /media/museum/hardware/ncr_decisionmate_memupgrade_s1.jpg
  - title: PARALLEL INTERFACE
    subtitle: ''
    text: ''
    image: /media/museum/hardware/ncr_decisionmate_parallelint_s1.jpg
  links:
  - title: Manuals and misc information in German language
    url: http://oldcomputers.dyndns.org/public/pub/rechner/ncr/dmv/info.html
    text: ''
  oc_id: 299
  source:
    url: https://web.archive.org/web/20230528095505/http://www.old-computers.com/museum/computer.asp?c=299
    date: '2023-05-28'
---

An other CP/M / MSDOS hybrid system. This computer had no great commercial success.

The Decision Mate V came with 128 KB of RAM, but could be upgraded to 256 or 512 KB with expansion cards. The serial and Centronics interfaces were not on the mainboard, but were added as expansion cards. An additional card with a 68000 was developed by NCR in order to use CP/M 68.

There were 7 expansion slots. An optional diagnostic card was available for slot 6. Otherwise, diagnostics were produced through 6 red LEDs on the back of the case, above the volume control.

The computer had two floppy drives, or only one + a Winchester hard drive mounted in the second bay.

A network called 'DecisoNet' was designed to link together several Decision V.

---

**Contributors:** Sebastian Rho.