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J > JUPITER CANTAB  > Jupiter Ace


This mini forum is intended to provide a simple means of discussion about the Jupiter Cantab  Jupiter Ace computer. If you want to share your own experience or memories, or add relevant information about this system: post a message!

  Click Here to add a message in the forum


Tuesday 22nd November 2016
Big Bad Bot

Jupiter Ace, when compared to computers of the era is just a little off center. And it is enough out of sync to make it uncomfortable to use$ especially since it did not have BASIC.

Now if they created it as a color computer before the Spectrum, then it probably would have been more successful.

Sunday 10th February 2013

I believe Matt is stupid and needs to get a life and typing lessons.

Monday 7th January 2013
Matt Whele

i believe all of you are stupid and need to get lives and get off of this site

Monday 7th January 2013
Matt Whele

i believe all of you are stupid and need to get lives and get off of this site

Monday 7th January 2013
Matt Whele

i believe all of you are stupid and need to get lives and get off of this site

Thursday 15th March 2012
Tony (Hastings/UK)

To keep comparing it solely to the ZX81 missed the point I think. Although memory was as low as the ZX81 and some of the hardware (such as graphics) almost as low, it was much closer in look and feel to the Sinclair Spectrum.

Saturday 29th May 2010
Nick (Swindon/Brussels)

I bought one in a sale at the time but it kept catching fire which was somewhat unnerving.

Thursday 16th June 2005
Steve(spt) (UK)
Jupiter Ace Resource Site

A searchable pdf of the manual, all 182 pages is now on the resource site at

Saturday 6th December 2003
Simon Goodwin (Warwick, UK)
Articles online

The Jupiter Ace was designed and implemented by Steven
Vickers and Richard Altwasser after they left Sinclair
Research for their start-up company Jupiter Cantab.
As Altwasser designed the Spectrum hardware (and later
computers for Amstrad) and Vickers wrote the Spectrum
manual and adapted the ROM from that for the ZX-81
(as an employee of Sinclair's software sub-contractors
Nine Tiles) the family resemblance should come as no

Simon Goodwin (former Technical Editor of Crash magazine)

Friday 15th August 2003
Mario Villar (Uruguay)

I want to know if anyone out there has a Jupiter Ace manual that can send me via mail.
Many Thanks

Wednesday 20th November 2002
Sam Wilson (Bergen)

Well, this looks like an interresting computer. I have never had one, but i have run an emulator. This computer reminds me of the ZX Spectrum. Why are they so similair?

Wednesday 12th June 2002
Alan Whiteside (UK)

I have two Jupiter Aces which I have recently refurbished.I wonder if any one has a circuit diagram.

Many thanks

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