• Robomow Powered Sinclair C5

    When I bought my Sinclair C5, it came without many parts, such as wheels, motor, batteries etc. Seeing that my Robomow robotic lawn mower had…

  • C5 - It's Alive!

    Back in July 2013, someone in the office mentioned the beautiful iconic 80's disaster that is the Sinclair C5.  Inevitably someone asked what they're worth now, and apart from the fact they cost £400 new, was dropped to £199 shortly after and then the price plummeted like a stone, I had no idea.  So I turned to the reliable font of knowledge in these things; eBay.  Generally, they were going for more than I expected, then I came across this sorry little thing

    2013-07-10 19.58.02

    With 4 days to go, the price seemed far too low, despite it being described as "Spares or repair", so, just for curiosity sake, I decided to watch the auction.  With 15 minutes to go the price was still too low, so I bid a stupidly low price... and was the highest bidder!  But with 2 minutes to go, I got outbid!  Well, the eBay red mist had descended, and I wasn't having any of that, so I bid again... and won it for £34.56!  What the hell was I going to do now?

  • Home built Z80 video on Computerphile

    In posts to come I'll go in to some details about the breadboard Z80 computer I built recently, but, in the mean time, here's a…

  • Vote for the worst tie

    Whilst clearing out my wardrobe recently, I discovered I had 40 ties. Most of which I no longer wore. Some I have never worn. And…

  • I've seen the future

    I have seen the future of computers. Yes, really I have.  What would you say if I said the future would be something about the size of a pad of paper. Which runs off of 4 AA batteries, giving it about 20 hours of use or 100 days of standby. Storage is solid state with no delicate moving parts, and can be expanded with plug in modules.  Software and files can be stored on these modules or bought with pre-installed on.  Built in apps include word processor, spreadsheet, database, diary, communications manager, alarm clock etc. Full size tactile physical QWERTY keyboard.

  • Useless Machine

    A machine is a device that does something useful, right?  Well, what about if the thing it does is useless?

    Well, here is my useless machine