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RESEARCH MACHINES  Research Machines

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.

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)
COLORS  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
PRICE  $650

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