yann64andClaude Opus 5.5
b274874139
1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
176 lines
6.6 KiB
Markdown
176 lines
6.6 KiB
Markdown
---
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title: Lucas Nascom 1
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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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- '1978'
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cpus:
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- Z80
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params:
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name: Nascom 1
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image: /media/museum/photos/lucas_nascom1_system_1.jpg
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logo: /media/museum/logos/lucas_nascom1_logo.gif
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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 1
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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: '1978'
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- label: BUILT IN LANGUAGE
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value: Monitor
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- label: KEYBOARD
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value: Full stroke 47 keys
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- label: CPU
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value: Z80
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- label: SPEED
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value: 1 or 2 MHz.
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- label: CO-PROCESSOR
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value: None
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- label: RAM
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value: 1 KB
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- label: VRAM
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value: 1 KB
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- label: ROM
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value: 1 or 2 KB
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- label: TEXT MODES
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value: 48 chars. x 16 lines
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- label: GRAPHIC MODES
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value: None
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- label: COLORS
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value: Monochrome
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- label: SOUND
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value: Unknown
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- label: SIZE / WEIGHT
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value: 30.5 (L) x 19.2 (W) cm. (8 x 12 in)
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- label: I/O PORTS
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value: TV-UHF video interface, selectable serial port (Tape recorder or RS232 or Teletype current loop)
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- label: BUILT IN MEDIA
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value: Cassette tape
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- label: OS
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value: Monitor in ROM
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- label: POWER SUPPLY
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value: Separate power supply unit (sold as option)
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- label: PERIPHERALS
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value: Memory boards and various I/O interfaces
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- label: PRICE
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value: £199 in kit form
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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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forum_thread: 795
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photos:
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- title: LARGE VIEW
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subtitle: ''
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text: Taken from a Nascom brochure
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image: /media/museum/photos/lucas_nascom1_system_2.jpg
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adverts:
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- title: NASCOM 1 BROCHURE
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subtitle: ''
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text: ''
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image: /media/museum/pubs/lucas_nascom1_brochure_s1.jpg
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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: /media/museum/hardware/lucas_nascom2_ieee488board_1.jpg
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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: /media/museum/hardware/lucas_nascom2_romboard_1.jpg
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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: /media/museum/hardware/lucas_nascom2_memoryboard_1.jpg
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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: /media/museum/hardware/lucas_nascom2_48kramboard_1.jpg
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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: /media/museum/hardware/lucas_nascom2_plutographcard_1.jpg
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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: /media/museum/hardware/lucas_nascom2_iocard_1.jpg
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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: /media/museum/hardware/lucas_nascom2_fdboard_s1.jpg
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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: /media/museum/hardware/lucas_nascom2_busextender_s1.jpg
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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 - 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 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-2
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- /museum/lucas-nascom-3
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oc_id: 814
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source:
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url: https://web.archive.org/web/20230530214032/http://www.old-computers.com/museum/computer.asp?c=814
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date: '2023-05-30'
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---
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The Nascom 1 was the most popular British made computer kit in the U.K. It was an affordable single board Z80 based computer with a keyboard attached by cable. It came as a kit or ready-built.
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Why Nascom? Because the idea of a low cost computer intended for U.K. hobbysts was originated by an American company called Nasco. However, the board was designed in the U.K. by **Shelton Instruments Ltd** that, later, also designed and sold the [Sig-Net](/museum/shelton-instruments-sig-net/)
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The minimum configuration featured 2 KB RAM and 1 KB ROM monitor, but the Nascom could be gradually extended into a system that was powerful enough to compete with many home computers of the time, Pet, Apple or Tandy.
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Actually, the RAM area was divided into two parts: 1 KB for user program and data and 1 KB for storing characters displayed to the television. The ROM monitor provided basic functions: enter program and data, display memory content and processor registers, save and load programs from a tape recorder.
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A whole range of peripherals and expansions were available from independant suppliers, as well as a vast range of software and many user groups. Several magazines dedicated to the Nascom and its relatives, the Gemini computers, were published. Many languages were available including BASIC, PASCAL, C, FORTH, etc.
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