Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


ZX Spectrum T-shirts!

see details
Ready prompt T-shirts!

see details
ZX81 T-shirts!

see details
Atari joystick T-shirts!

see details
Arcade cherry T-shirts!

see details
Spiral program T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
Atari ST bombs T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
Moon Lander T-shirts!

see details
C64 maze generator T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Vector ship T-shirts!

see details
Breakout T-shirts!

see details
Pixel adventure T-shirts!

see details

L > LUCAS  > Nascom 1   

LUCAS   Lucas
Nascom 1

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.

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

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.

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.

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.

Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


I bought my kit at Hobby Data in Sweden 79. Worked hard whole summer (just started high school). My grandfather was a carpenter and made me a wooden case for it and the keyboard. Learned to program Z80 and hand assembler. Many notebooks with mnemonics and hex-code. Built 8k of RAM, bought ZEAP Assembler. Wrote a BASIC interpreter. And ever since that time have I worked with product development. I''m glad NASCOM taught me a profession. A computer a student could afford.

Friday 6th February 2015
Ulf Wennström (Sweden)

I remember building one of these while at college learning to become a TV engineer. It got me interested in computers and led to me working for the same college (I''m still there after 24 years!). We had 8 of these which we used for microprocessor $ control systems courses. They were mounted in 2U rack cases and expanded to 16K. I was so impressed with them that I built one for myself. The one problem I had was with the siting of the keyboard cable which would produce spurious characters until re-routed away from the power supply. I still fondly remember programming in assembler on these machines.

Monday 26th November 2012
Paul Thomas (UK)

$$ Was I only only person to make use of the 8 bytes of "spare" ram at the end of each display line?

No, I remember that well. Often these days, when writing some code and allocating Mbs to a memory array without a thought I think back to those days when every byte counted.

Thursday 27th September 2012
Nick Burnard (UK) (UK)


NAME  Nascom 1
TYPE  Home Computer
ORIGIN  United Kingdom
YEAR  1978
KEYBOARD  Full stroke 47 keys
CPU  Z80
SPEED  1 or 2 MHz.
ROM  1 or 2 KB
TEXT MODES  48 chars. x 16 lines
COLORS  Monochrome
SOUND  Unknown
SIZE / WEIGHT  30.5 (L) x 19.2 (W) cm. (8 x 12 in)
I/O PORTS  TV-UHF video interface, selectable serial port (Tape recorder or RS232 or Teletype current loop)
BUILT IN MEDIA  Cassette tape
OS  Monitor in ROM
POWER SUPPLY  Separate power supply unit (sold as option)
PERIPHERALS  Memory boards and various I/O interfaces
PRICE  £199 in kit form

Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
Arcade cherry
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Vector ship

Related Ebay auctions in real time - click to buy yours

see more Lucas  Nascom 1 Ebay auctions !

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -