Fingers Crossed for 2021 ...

2020 was the worst! COVID kept the museum closed for much of the year and a mains water pipe bursting causing a flood kept us closed for the rest. 
We're hoping to re-open in the next few months ... fingers crossed! Read More >>>

Please Donate Via Just GivingNo visitors, no workshops, no events, no school visits... no income. We know that things are tough for everyone right now, but if you can afford to help us through these tough times please donate what you can.

There's over 36,000 exhibits here! That should keep you occupied for a bit - get searching!

Or come and get involved on our social media channels ...

      Twitch  Facebook          Online Gift Shop      

Thank you.

Code Wheel

The code wheel is another industry attempt to curb software piracy, they vary somewhat in how they work, but are genuinely similar in operation.

When the game loads, the player is given a picture, words, or symbols or a combination of all three, you would turn the wheel so the ones on screen are in the same segment, then through a small window a number can be seen. This is then entered and the game runs.

The wheels vary greatly in complexity, some have only one wheel, but others use as many as three.

Some games have some quite fun wheels, The Secret of Monkey Island has the Dial a Pirate one, where the player must match up the bottom of a pirates' face to the top, and getting the number that way.

Of course there was little to stop people copying the parts and making their own wheel, but back in the 80s and 90s it would have meant going and using a photocopier in a library, as homes with full scanning and printing capabilities were few and far between.

Date : 1989

This exhibit has a reference ID of CH57263. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: Code Wheel

Click on the Image For Detail

Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum