Things are tough right now ...

They're tough for everyone :( But when coronavirus hit here in the UK, the museum had to close its doors to the public, and we lost practically all our income overnight.

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.

DEC GT40 Graphic Display Terminal

The DEC GT40 Graphic Display Terminal is an intelligent terminal based on a PDP-11/05, first introduced in 1972.

The GT40 consists of:

KD11-B (PDP-11/05) central processor
VT40 display processor, including bootstrap ROM (same modules as VT11, but instead of the four-slot backplane, this has a nine-slot backplane to include the CPU and memory)
MM11-L 8K word core memory (MM11-K 4K word core memory on GT40-Bx models)
DL11-E asynchronous line interface
LK40 keyboard
VR14-LC X-Y monitor (or -LD for 230V)
375 light pen

4 page promotional leaflet with brief specifoication

We are extremely grateful to both Dawn and Kim Wakefield for the kind donation of the collection of their late father Richard Wakefield

Date : 1972

Creator : Digital

This exhibit has a reference ID of CH15612. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: DEC GT40 Graphic Display Terminal

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