8086 CPU @ 8MHz,

512K Ram,

Despite the Sinclair name this machine is made by Amstrad and was viewed as "cashing in" on the games market. At the time Amstrad was attempting to move into the business market with it's 2000 series models. To be fair the computer performs well though, using a TV instead of a monitor gives a poor picture and text use is not recommended. There is no provision for a hard drive but a hard crad can be used from the ISA slot. An unusual computer from collectors point of view and probably quiet rare, the model was dropped after a year or so and Amstrad dealers deny all knowledge of this hybrid.

This is the layout of the
sinclair mark 14.
Anyone who has one
of these i would be very interested.

1978 MK14 launched, the first Sinclair computer.cost � 40.00






Sinclair ZX80

It was launched in UK in March
1980.The ZX80 came with 1k of
user memory(RAM). And a 4k
operating system/basic language
chip.It could be bought ready made
or in kit form.







Sinclair ZX81

Clock speed 1mhz. memory 8k
rom of basic and 1k ram and
expanded 16k. It was launched in
UK in June 1981cost � 70.00






Sinclair ZX Spectum 16k


1982 Spectrum  launched, cost � 125.00 with 16k Ram







Sinclair ZX Spectrum 48k

It was launched in UK in July 1982 cost � 175.00 with 48k Ram.
Z80 a microprocessor running at 3.5mhz
16k-byte ROM containing BASIC
interpreter and operating system.
6k-byte RAM (plus optional 32k-byte
RAM on internal expansion board)
or 48k-byte RAM. Version 1.0 sell 60.000 units, Version 2.0 500.00 units.


Sinclair ZX Spectrun + 








Sinclair ZX Spectrum 128k

It was launched in UK 1985 cost � 180
Z80A Microprocessor
Speed CPU 3.5 MHz
128k Ram
RGB or TV display
RS232 serial port
Printer socket
Two Joystick ports








Sinclair ZX Spectrum +2

It was launched in UK 1986 cost � 140
Z80A Microprocessor
Speed CPU 3.5 MHz
128k Ram
Built in Tape Recorder
RGB or TV display
RS232 serial port
Printer socket
Two Joystick ports


Sinclair ZX Spectrun +2 A 








Sinclair ZX Spectrun +3

It was launched in UK 1987 cost � 250
Z80A Microprocessor
Speed CPU 3.5 MHz
128k Ram
Built in Floppy Disk Drive
RGB or TV display
RS232 serial port
Printer socket
Two Joystick ports








Sinclair QL

68008 32-bit Processors
128K Ram
RGB or Monochrome Monitor and TV display
Two Microdrive built in, 100k per cartridge
Price � 399

The Sinclair QL
offers an incredible 128k Ram - expandable
to 640k. It uses a 32 - bit processor -
 the advanced Motorola 68008 chip.
It's supplied complete with a suite
of four program which outperform the
software for all existing micros.
It has two built-in Microdrives, each
offering 100k of storage for program
and data. It has networking capability; a
full-size QWERTY keyboard; its own
operating system - QDOS - which
accommodates multi-tasking.
It drive colour and monochrome
monitors and TV, incorporates RS-232-C
serial interface, accepts joystick cursor
control� It allows you to do more than
 any other micro available today. It
tackles business routines with confidence.
It plays games of altogether exceptional
sophistication. It makes the most complex
 programs simpler and faster to write or run.
And because it's so powerful, it's uniquely
user-friendly-gentle and helpful with
beginners, flexible and responsive to
advanced programmers. In fact, the
Sinclair QL matches and surpasses
the prformance of machines costing
thousands of pounds. Yet it costs only
�399 to make the Sinclair quantum leap!   








Sinclair Z88


The Z88 is
a unigue computer for several reasons.
For the first time in a machine of its size
and portability it offery you a powerful productivity
 tool, PipeDream, capable of tackling the most
demanding application and providing all the
capabilities normally only obtained by working
with separate programs on much larger comupters:
it combines in one program most facilities provided
by the best word processors, database programs,
and spreadsheets. To complement PipeDream,
the Z88 comes complete with a range of utility
programs,designed to anticipate any task you
might wish to perform in the home or office: these
include a clock, calculator, diary and organiser,
and an alarm reminder. The Z88 also avoids
the problems of storing documents and applications
long-term by providing battery-powered circuitry which
will retain all the information in the computer for over
a year while it is switched off. The batteries also
maintain the correct time and date in an internal
clock and calendar..

Z88 Spec,

Power source:
4*AA Alkaline cells ( MN1500,LR6 ) providing 20 hours
 of use AC Mains adaptor ( 6.5v DC+10% ),
500 mA, centre positive.
Weight: 900g ( 1.98 lb ).
Keyboard: Qwerty,silent, 64 keys including Index,
Menu, and Help.
Sound: Miniature loudspeaker, used for alarm or warning.
Serial I/O port: RS323, connector 9-way 'D' female.
Operating system: Unique to Z88 ( concurrent,
4M Bytes address range ).
Microprocessor: CMOS Z88.
Internal memory: Ram CMOS 32k Bytes.Ram CMOS
128k Bytes
Memory cards: Slots 1,2 or 3 1M Byte per card maximum
and slot 3 also programs Eprom cards.



Sinclair Z88 kits

Included Eprom eraser,
 Z88 PC link, Serial cable, Printer cable,
Z88 mains adaptor, 128k Ram







Sinclair ZX Spectrum Computers SOLD as packs

Sinclair ZX Spectrum +2 James Bond 007 Action Pack


Sinclair ZX Spectrum +2  Action Pack

Sinclair ZX Spectrum +3  Action Pack

Sinclair ZX Spectrum Business Pack







The Spectrum's Family Tree

1978   Mk 14 launched, the first 'Sinclair' computer.
Cost: �40


1980   ZX80 launched, Cost: � 80 as kit, � 100 ready-built

1981   ZX81 launched, Cost: � 70

1982   Spectrum launched,
Cost: � 125 with 16k RAM, � 175 with 48k RAM.
Version 1.0 sell 60,00 units, Version 2.0 500,000 units

1983   Interface 1, Interface 2
and Microdrives launched. Spectrum become a
million-seller; price reduced to � 99.95 and � 129.95
 for 16k and 48k machines. V3.0 released and v3.1,
 v3.2, v3.3 release numbering scheme adopted

1984   Spectrum Plus released.
Cost � 50 more that rubber keyed machine

1985   Rubber keyed machines
and 16k Spectrum discontinued. Spectrum 128k
launched in Spain. Cost:s around � 180 when it
arrives in the UK

1986   Sinclair Research,
Spectrum stocks and Sinclair name bought by
Amstrad. Cost: 5 million Amstrad launches
Spectrum Plus Two - the 128k version with a
tape recorder 'glued on'. Costs � 140; 250,000 sold

1987   The fruits of Amstrad's
redesign of the Spectrum launched as the Spectrum
Plus Three. Costs � 250.

1989   Two Spectrums available
 in the shops, the Plus Two A and Plus Three, which
share the same guts - � 134 and � 199 respectively






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