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Time-Line computer Archive Ltd is a not for profit company, our aim is to collect, restore and exhibit all types of early computers and electronics.

We hope that our website will give an insight to the development of computing and will help give inspiration to other people to collect rather than throw out historical electronics.

We also would like to make a record of peoples experiences of early Computing and Electronics primarily from Scotland and the North of England but also from Great Britain generally. If you have any Experiences of early computing or Electronics please don't hesitate to contact us.

Dobby Loom Program Chain

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Dobby Loom Chain












We would like to thank Mr Aram of Masson Mill for kindly

donating this program chain and showing us around his Museum & Centre.


For a more detailed description

click on


The Dobby Loom was first introduced in the mid 19th century and was programmed using

a continuous chain of pegged slats.

Still binary in nature, (yes + no) + (true + false)

It differs from the Jacquard Loom program cards, as the chain can be reprogrammed, this

can be done by taking the pegs out and repositioning them to form the new program.















You could give a very good argument for this being the first mechanical

equivalent of a electronic Eprom.

What do you think?


It is hoped that in the new year the Museum will be getting a Dobby Loom.

It'll make an interesting crossover between the Computer Museum and the Heritage Centre!

We'll keep you posted on developments.