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N > NCR  > Decision Mate V   

Decision Mate V

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.

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My father Cleveland District Administration Manager of NCR and purchased one in 1982. I have it in my basement. I turn it on sometimes to allow "Children" under 30 to see how spoiled they are. Rare anybody has known how to activate anything.

Friday 26th July 2019
Rich Medlar (Cleveland, OH, USA)

Yo trabajé de analista-programador en NCR durante varios años (1981-1986) y poseo desde entonces un NCR-DM-V que costaba 1.500.000 Pesetas (RAM 256MB, HD 10MB y disquetera 3 1/2). En España ese era su precio, por otro lado, más o menos lo que costaba un PC-IBM pero el NCR-DM-V era un producto de mejor calidad y mejores prestaciones.
Lo tengo bien guardado, con sus disquetes de RM-COBOL, CP/M y MS-DOS y funcionando todo correctamente.

I worked as an analyst-programmer at NCR for several years (1981-1986) and since then I had a NCR-DM-V costing 1,500,000 pesetas (256MB RAM, 10MB HD and 3 1/2 floppy disk). In Spain that was its price, on the other hand, more or less what cost an IBM PC but the NCR-DM-V was a product of better quality and better performance.
I have it well saved, with its RM-COBOL, CP / M and MS-DOS floppy disks and running everything correctly.

Tuesday 26th September 2017
Fernando Baldellou (Madrid/España)

I too was a proud owner of a DM-V$ I was working for NCR in Dayton when it was released but purchased it through the NCR Credit Union after transferring back to the field in Boise, Idaho in 1981. Great machine, but a little before its time. It had a unique boot system which made in incompatible with the IBM machines. It had fantastic graphics (from NEC) with 8 colors instead of the 4 colors that IBM had. I relocated the BIOS code in mine and tweaked it to use the 8 color display. I was able to run any PC app that used standard BIOS calls and did not rely on direct memory addressing. I demoed the machine at several Food $ Drug trade shows in Boise, Seattle, and San Francisco and could have sold several except it wasn''t supported by NCR. It really blew away the IBM in direct competition running the same software

Monday 21st November 2016
Neil Jarvis (United States)


NAME  Decision Mate V
TYPE  Professional Computer
YEAR  1984
KEYBOARD  Typewriter type 91 keys with 20 programmable function keys and numeric keypad
CPU  Zilog Z80 - Optional Intel 8088 or Motorola 68008
SPEED  4.88 MHz (8088) / 4 MHz (Z80)
RAM  64 kb, 128 kb, 256 kb or 512 kb depending of models (through expansion cards)
VRAM  32 KB (monochrome mode) or 96 KB (colour mode)
ROM  Unknown
TEXT MODES  40 or 80 columns x 25 lines
GRAPHIC MODES  576 x 432 dots
COLORS  Monochrome built-in display (green / black)
SOUND  Beeper
I/O PORTS  Centronics, RS232, 7 expansion slots
BUILT IN MEDIA  One or two floppy disk drives (320 KB each), 10 to 30 MB hard disk
OS  MSDOS 2.1, CP/M or CP/M 86 or CP/M 68K
POWER SUPPLY  Built-in power supply unit
PRICE  Unknown

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