yann64andClaude Opus 5.5
3eeabe9649
6,654 pages: 1,289 machines, 702 software, 460 companies, 64 history, 17 articles, 59 fun. 4,336 media files so far; references to files not downloaded yet are left out. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
98 lines
3.2 KiB
Markdown
98 lines
3.2 KiB
Markdown
---
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title: Digital Equipment Corporation DECmate III
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categories:
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- Computers
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types:
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- Professional Computer
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origins:
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- U.S.A.
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years:
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- '1984'
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cpus:
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- Harris 6120 cpu
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params:
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name: DECmate III
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company: /companies/digital-equipment-corporation
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company_name: Digital Equipment Corporation
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specs:
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- label: NAME
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value: DECmate III
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- label: MANUFACTURER
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value: Digital Equipment Corporation
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- label: TYPE
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value: Professional Computer
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- label: ORIGIN
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value: U.S.A.
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- label: YEAR
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value: '1984'
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- label: END OF PRODUCTION
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value: '1990'
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- label: KEYBOARD
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value: QWERTY full-stroke professionnal keyboard
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- label: CPU
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value: Harris 6120 cpu (12 bits)
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- label: SPEED
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value: 8 Mhz
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- label: RAM
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value: 32k (+ 32k for dedicated control panel functions)
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- label: TEXT MODES
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value: 80 x 24 and 132 x 24
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- label: COLORS
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value: 'No'
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- label: SIZE / WEIGHT
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value: 32 x 28 x 14 cm / 8 kg
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- label: I/O PORTS
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value: RS232C, printer, data-communication port
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- label: BUILT IN MEDIA
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value: 2 x 5
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- label: OS
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value: OS/278
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- label: POWER SUPPLY
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value: Built-in PSU
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- label: PERIPHERALS
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value: |-
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Color graphics board\
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APU board : Z80 based board for CP/M use\
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XPU board : 8088 based board for MS/DOS use\
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Modem
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- label: PRICE
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value: approx. 2700$
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tabs:
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- photos
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- links
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photos:
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- title: MAIN UNIT
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subtitle: ''
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text: ''
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image: null
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links:
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- title: DECmate FAQ by Charles J. Lasner
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url: http://www.ibiblio.org/pub/academic/computer-science/history/pdp-8/docs/dminfo.faq
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text: DECmate specific information
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- title: PDP8 page by Douglas W. Jones
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url: http://www.cs.uiowa.edu/~jones/pdp8/
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text: Infos and links about the PDP8 machines
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- title: '''''What is a DECmate III ?'''' from the PDP-8 FAQ'
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url: http://www.faqs.org/faqs/dec-faq/pdp8-models/section-15.html
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text: Useful
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comments:
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- author: Ian (UK)
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date: Thursday 5th June 2003
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text: that system box looks similar to a VAXstation 2000 I used to carry around as a portable.
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oc_id: 468
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source:
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url: https://web.archive.org/web/20230202174529/http://www.old-computers.com/museum/computer.asp?c=468
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date: '2023-02-02'
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---
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This computer is still based on the PDP-8 architecture but is less "opened" than the DECmate II. Indeed DEC realised that the PDP-8 based products were rarely expanded to their full potential. Thus, they conceived the DECmate III wich offers less expansion possibilities but which was also cheaper.\
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As the last incarnation of the PDP-8 technology, the DECmate III use a single chip containing all the PDP-8 hardware !
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Only one pair of 5''1/4 disk-drives (RX50) is supported and it is not possible to connect a Hard-Drive. But unlike the DECmate II, a color monitor can replace the monochrom screen.
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It was mainly intended for professionnal word-processing, but could also run other software including OS/278. The DECmate III was compatible with the DECmate II.
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In 1985, a DECmate III+ was sold with a hard disk controller built-in and overall completely new hardware components, though still compatible with the DECmate II and III.
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The DECmate computers were marketed by Digital Equipment Corporation.
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