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L > LUCAS  > Nascom 2   

LUCAS   Lucas
Nascom 2

The Nascom 2 was a deep evolution of the Nascom 1 that required 18 months of design and development but offered lots of enhancements: a faster processor (4 MHZ.), greater RAM and ROM capacity (10 KB + 10 KB), built-in Microsoft BASIC, extended keyboard, improved tape interface, etc.

User RAM could be expanded to 32 KB on board and the system didn't need the use of expansion board or system bus to run large applications. Even now, the Nascom 2 is regarded as the most versatile single board computer in 1980's.

Sadly, in 1980, Nascom Limited company met difficulties in components sourcing, specially RAM chips, and the company ceased Nascom 2 deliveries. Some Nascom dealers will then set up the Gemini company and produce a copy of the Nascom 2. Finally, Nascom Limited is sold to Lucas Logic (later Lucas Nascom) in 1982 and the Nascom 2 will come back in a cased version called Nascom 3.

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


The Nascom 2 was my first computer - I wasn''t bravce enough to build it myself so got the shop (Evesham Micros) to build it for me for an extra £50.I had it for about 10 years, upgrading to colour graphics and a disk drive, and even wrote a Scrabble program which could beat the Spectrum version (only on low levels though!). I gave it to a friend who wanted to use the interface for some control experiments and it never came back :(

Tuesday 2nd August 2022
Malcolm Neave (England)

Previous post seems to have gone wrong. This URL should work. Nascom link on home page

Tuesday 23rd October 2018
John Harrison
John Harrison

I built a Nascom 2 and designed a sound card to go with it. I subsequently added discs and more storage. Full story $ picture at:

Tuesday 23rd October 2018
John Harrison (England)
John Harrison


NAME  Nascom 2
TYPE  Home Computer
ORIGIN  United Kingdom
YEAR  1979
KEYBOARD  Full stroke 53 keys with arrow and graphic keys
CPU  Z80-A
RAM  9 KB expandable to 32 KB
ROM  10 KB - Monitor ( 2 KB) + Microsoft BASIC
TEXT MODES  48 chars. x 16 lines
COLORS  Graphic characters in ROM
SOUND  Unknown
SIZE / WEIGHT  30.5 (L) x 19.2 (W) cm. (8 x 12 in)
I/O PORTS  Serial RS232, TV-UHF and composite video, I/O lines, TTY
BUILT IN MEDIA  Cassette tape
OS  Monitor in ROM
POWER SUPPLY  External power supply unit
PERIPHERALS  Memory board, graphic board, 5.25'' floppy disc controller
PRICE  £399

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