Sinclair ZX Spectrum +3

The ZX Spectrum +3 looked similar to the +2 but featured a built-in 3-inch floppy disk drive (like the Amstrad CPC 6128) instead of the tape drive, and was in a black case. It was launched in 1987, initially retailed for £249 and then later £199 and was the only Spectrum capable of running the CP/M operating system without additional hardware.

The +3 saw the addition of two more 16 KB ROMs, now physically implemented as two 32 KB chips. One was home to the second part of the reorganised 128 ROM and the other hosted the +3's disk operating system. This was a modified version of Amstrad's AMDOS, called +3DOS. To facilitate the new ROMs and CP/M, the bank-switching was further improved, allowing the ROM to be paged out for another 16 KB of RAM.

Manufacturer: Sinclair
Date: 1st June 1987

Sinclair ZX Spectrum +3 Manuals:

Item Manufacturer Date
A Course in BASIC Programming - ZX80 Operating Manual Science of Cambridge 1980
Disk Interface Manual (Technology Research) Technology Research 1984
Sinclair - ZX Spectrum Servicing Manual Sinclair January 1984
Sinclair ZX Spectrum +2 Manual Sinclair 1986
Spectral Manual (East German ZX Spectrum Clone) Hübner Elektronik 1988

Sinclair ZX Spectrum +3 Articles:

Item Manufacturer Date
Memories - The Tatung Einstein (1)
Memories - My History of Computing - From a School Teacher February 2009

Other Systems Related To Sinclair ZX Spectrum +3:

Item Manufacturer Date
White Replica ZX Spectrum (Millionth Edition) Sinclair Unknown
Sinclair Spectrum with Homemade Keyboard Sinclair Unknown
Science of Cambridge MK14 + Original Keyboard Sinclair 1977
Science of Cambridge MK14 Sinclair 1977
Science of Cambridge MK14 - Original Kit Sinclair 1977
Science of Cambridge MK14 + Memory Expansion in wooden case Sinclair 1977
Sinclair ZX80 Updated to ZX81 Sinclair 1980
Sinclair ZX80 Sinclair 1st June 1980
Sinclair ZX81 Kit Sinclair 1981
Sinclair ZX81 Issue One Sinclair 5th March 1981
Sinclair ZX81 (Signed) Sinclair 5th March 1981
Sinclair ZX81 with Custom Case/Keyboard Sinclair 5th March 1981
Sinclair ZX Spectrum Console Sinclair 1982
Timex Sinclair 1000 Sinclair 1982
Early Sinclair ZX Spectrum Computer Sinclair 1982
Prototype Issue 2 ZX Spectrum Sinclair 1982
Sinclair ZX Spectrum Console Sinclair 1982
Argentinian Sinclair Spectrum Sinclair 1982
Timex Sinclair 1000 Sinclair 1982
Sinclair ZX Spectrum 48k Sinclair 1st March 1982
Sinclair ZX Spectrum 16K Sinclair 1st March 1982
Sinclair ZX Spectrum Case (Signed) Sinclair 1st March 1982
Sinclair QL Sinclair 1984
Sinclair QL + SchÖn Keyboard Sinclair 1984
Sinclair QL (Property of Sinclair) Sinclair 1984
Sinclair QL (Signed) Sinclair 1984
Sinclair QL (US) Sinclair 1984
Sinclair ZX Spectrum+ Sinclair 1st June 1984
Sinclair ZX Spectrum +2 Sinclair 1986
Sinclair ZX Spectrum 128 Sinclair January 1986
Sinclair ZX Spectrum 128 Sinclair 1st June 1986
Cambridge Z88 Sinclair 1987
Sinclair ZX Spectrum +3 (Currys Box) Sinclair 1st June 1987
Sinclair PC200 Sinclair 1988

This exhibit has a reference ID of CH509. Please quote this reference ID in any communication with the Centre for Computing History.

 

Sinclair ZX Spectrum +3

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