Full content from the completed page crawl (media download still running)
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
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Claude Opus 5.5
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---
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title: Lucas Nascom 3
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- United Kingdom
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years:
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- '1981'
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cpus:
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- Zilog Z80 A
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params:
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name: Nascom 3
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company: /companies/lucas
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company_name: Lucas
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specs:
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- label: NAME
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value: Nascom 3
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- label: MANUFACTURER
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value: Lucas
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: United Kingdom
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- label: YEAR
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value: December 1981
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- label: BUILT IN LANGUAGE
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value: Microsoft Basic
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- label: KEYBOARD
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value: Full-stroke keyboard
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- label: CPU
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value: Zilog Z80 A
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- label: SPEED
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value: 4 MHz
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- label: RAM
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value: 8 KB to 60 KB (depending on models)
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- label: ROM
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value: Unknown
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- label: TEXT MODES
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value: 40 or 80 columns x 25 lines
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- label: GRAPHIC MODES
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value: 400 x 256 (8 colours) - 800 x 256 (2 colours)
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- label: COLORS
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value: 8 (320 x 256) / 2 (640 x 256)
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- label: SOUND
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value: Unknown
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- label: I/O PORTS
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value: TV and video outputs, tape recorder, Serial and Parallel ports
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- label: BUILT IN MEDIA
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value: Two 350 KB 5.25'' disk-drives (optional)
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- label: OS
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value: NAS-SYS, CP/M 2.2 or NAS-DOS
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- label: POWER SUPPLY
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value: built-in power supply unit
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- label: PERIPHERALS
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value: Light pen, NASBUS cards
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- label: PRICE
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value: $1,493 (UK, 1982)
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tabs:
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- photos
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- adverts
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- hardware
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- emulators
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- links
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photos:
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- title: LARGE VIEW
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subtitle: ''
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text: ''
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image: null
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adverts:
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- title: LUCAS LOGIC BROCHURE
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subtitle: ''
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text: ''
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image: null
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hardware:
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- title: IEEE488 CARD
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subtitle: ''
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text: Made by EV Computing Ltd.
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image: null
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- title: ROM CARD
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subtitle: ''
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text: |-
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This card can be fitted with 2708 (1 KB) or 2716 (2 KB) EPROM chips, giving up to 32 KB of ROM area.
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The card also provides a special socket (bottom left) for the 8K Microsoft BASIC interpreter ROM.
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image: null
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- title: ROM/RAM MEMORY CARD
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subtitle: ''
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text: Features 32 KB RAM (16 x 4116) and 8 KB ROM (4 x 2708)
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image: null
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- title: 48 KB RAM CARD
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subtitle: ''
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text: This card holds 3 banks of 16 KB 4116 RAM chips.
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image: null
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- title: COLOR GRAPHICS CARD
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subtitle: ''
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text: The PLUTO color graphics card offered a maximum resolution of 768 x 576 pixels with 8 colours. It featured an Intel 8088 processor, 192 KB of RAM (3 planes of 64 KB) and could be connected to any RGB TTL or composite colour or monochrome monitor.
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image: null
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- title: I/O CARD
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subtitle: ''
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text: |-
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This card provides support for six 8-bit parallel ports, one serial port (not installed here), and one counter/timer control unit.
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The card was supplied with empty sockets. Each device could be acquired separately.
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image: null
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- title: FDD CONTROLLER CARD
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subtitle: ''
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text: Floppy disk drive controller card along with its genuine Lucas box.
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image: null
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- title: BUS CARD EXTENDER
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subtitle: ''
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text: This card allowed to check any Nascom card without it being directly inserted into the Nascom bus.
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image: null
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emulators:
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- title: Nascom 1 emulator
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url: http://members.aol.com/mk14emu/nascom.htm
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platform: MS DOS
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text: This emulator, written by Paul Robson, supports all the hardware of the standard Nascom 1
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- title: MESS
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url: http://www.mess.org
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platform: Windows
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text: MESS also emulates Nascom computers !
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- title: Nasemu
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url: http://www.myplace.nu/nascom/nasemu.htm
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platform: Windows
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text: This Nascom-2 emulator is a work in progress. It is an attempt to fully emulate a Nascom-2 computer.
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- title: Nascom 2 / 3 Java Emulator
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url: http://www.nascomhomepage.com/#Virtual%20Nascom
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platform: Other platform
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text: Java emulator written by Richard Espley is available.
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- title: Virtual Nascom
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url: http://www.nascomhomepage.com/#Virtual%20Nascom
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platform: Multiplatform
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text: Nascom emulator for Unix/X11 and DOS
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links:
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- title: All things Nascom, Gemini and MAP-80
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url: HTTP://WWW.80BUS.COM
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text: A complete archive for 80 BUS Systems
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- title: MIXTEL
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url: http://www.mixtel.pwp.blueyonder.co.uk/pictures.html
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text: Info about Nascom and Gemini
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- title: MIXTEL - Nascom.info
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url: http://www.mixtel.pwp.blueyonder.co.uk/nascgem/index.html
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text: Great Nascom history and info
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- title: NASCOM home page
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url: http://www.bln.de/conzi/nascomhomepage/
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text: All you will ever need to know about Nascom systems!!
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- title: Nascom Nostalgia
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url: http://www.myplace.nu/nascom/
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text: Excellent ressource with info, software and documentations
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- title: The Nascom Home Page
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url: http://www.nascomhomepage.com/
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text: Wow, you want to go there. Info, links ,software, documentations and more !
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related:
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- /museum/lucas-nascom-1
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- /museum/lucas-nascom-2
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oc_id: 175
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source:
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url: https://web.archive.org/web/20230606210120/http://www.old-computers.com/museum/computer.asp?c=175
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date: '2023-06-06'
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---
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When the original Nascom company went into liquidation, the owner and a number of staff immediately set up Gemini in the next town. Gemini produced computer boards and systems using the same bus as the original Nascom. After some delay, the original Nascom operation was taken over by a division of Lucas Industries in 1981 (renamed Lucas Nascom), who developed the system and produced new boards and software.
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The Nascom 3 was basically a cased version of the original Nascom 2, using the original Nascom 2 mother board, with space for fitting various expansion cards (disc drive interface, Advanced Video Controller, memory, etc).
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Both CPM and NAS-DOS operating systems were available for disc users, though the original tape interface remained, and in its most basic form the machine could be used with this, and no disc drives. There was also a network system based on NAS-DOS.
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Since the bus of both the Nascom and Gemini systems was the same, it was not unusual for users to create hybrid systems - adding, for example, Gemini boards to their Nascom 3 or 2, or of course fitting Nascom boards into Gemini systems. Lucas designed and manufactured their own boards and systems, and indeed the Gemini and Nascom products were in competition in the market.
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There was several software available: Nascal (Financial Modeller), Manor (Data Base Manager), Corplan (Business Modeller), Calcstar (Financial Modeller), Wordstar (Word Processor), FMS 81 (Data Base Manager), etc.
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The Nascom III can accept Nascom II boards, and some new hardware: Hires colour graphics, 80 columns, single or double floppy drives (0.75 MB each), printer, etc.
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Thanks to Mike Hessey for the help.
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