The Link 480Z was meant originally as a disc-less network station. It was designed to offer a lower cost computer to schools. The name "Link" meant link in a chain. It was a very reliable system, and one of the first personal computers used in the English schools.
Because of the good reputation of the Research Machines computers, the Link 480Z was one of the three computers chosen for the U.K. 1982 Educational Scheme, with the Sinclair Spectrum and the BBC Model B.
The basic version (cassette based with 32 KB of RAM and 8 KB ROM Monitor) could be extended to a real professional CP/M based system with network ability.
An optional expansion board added:
- 32 KB of RAM
- Colour or monochrome high resolution graphics (up to 640 x 192)
- Full IEEE 488 and colour RGB monitor interfaces
- Floppy disc interface in single, double or quad density modes
The 480Z was fully compatible with the 380Z. It was initially released in a black metal case prior to tooling being made for the subsequent beige plastic case version.
We had 480Z''s in secondary school linked to a twin floppy 380Z "server" at the front of the classroom. I remember the teacher $ing 2x discs which I think had the same content and then instructing us to wait until he''d loaded the program onto his 480Z first. Then it would be our turn, with the workload split between the two server drives - a kind of load balancing system. Best way to wind up the teacher was for the entire class to jump the gun in unison $ get loading first!
Wednesday 31st August 2011
Ash (Didcot, United Kingdom)
Goto the yahoo group 380z, have posted answer there...
Sunday 5th December 2010
ghoolster
I have a 480Z and an MD1 floppy drive in the loft, I''d been after them for years.... I didn''t get the serial cable that connects them together though. Does anyone out there know how to wire one up? Cheers, Dave
Saturday 18th September 2010
Dave (UK)
NAME
LINK 480Z
MANUFACTURER
Research Machines
TYPE
Professional Computer
ORIGIN
United Kingdom
YEAR
1981
BUILT IN LANGUAGE
Microsoft BASIC interpreter
KEYBOARD
Full-stroke with 4 cursor controls and 4 user definable keys
CPU
Z-80A
SPEED
4 Mhz.
RAM
32 KB up to 256 KB
VRAM
16 KB (expansion board)
ROM
8 KB up to 32 KB
TEXT MODES
40 or 80 chars. x 25 lines
GRAPHIC MODES
640 x 192 monochrome, 320 x 192 (4 colours), 160 x 95 (8 colours)
COLOrsc
Up to 8
SOUND
built-in tone generator and speaker
SIZE / WEIGHT
53(W) x 33.5(D) x 8(H) cm / 3.2 Kg.
I/O PORTS
Composite, RGB and aerial video outputs, IEEE-488, Network, Serial x 2, Parallel, Tape recorder, Analog
BUILT IN MEDIA
Tape recorder or optional 5'' F.D. drive
OS
Microsoft Basic or CP/M
POWER SUPPLY
Built-in power supply unit
PERIPHERALS
Single or dual 5'' F.D. drives unit, Multi I/O expansion board
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