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.

Open University Hektor TM222 Peripheral Board

This expansion board connects to the Hektor II computer and was used in the Open University's course 'PT222 - The Digital Computer'. It uses an 8255A peripheral interface chip to expose eight LEDs, eight toggle switches, and two illuminated momentary pushbuttons.

Date : Unknown

Manufacturer : Open University

Format : Expansion Board

This exhibit has a reference ID of CH39957. Please quote this reference ID in any communication with the Centre for Computing History.
 

Scan of Document: Open University Hektor TM222 Peripheral Board

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