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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.


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Mr John V Blankenbaker with

his Kenbak-1 computer

(Photograph supplied by Mr Blankenbaker)

For a more detailed

description click on








The Kenbak-1 was given the distinction of being the worlds first commercially

available personal computer by a panel of experts

put forward by the Boston Computer Museum

( now the Computer History Museum) back in 1987.










Front panel design



Designed, Built and Marketed by John V Blankenbaker back in

1970-73, it epitomises true vision and set a new standard of thinking.

It is a single board computer with no single processor chip, the

processor is constructed by TTL logic gates, it has a programmable memory

of 256 bytes and an instruction clock speed of about 1MHz.

The Kenbak-1 uses binary/octal machine code (great fun) this is

a link to very good emulator.



















Single PCB or Mother board


It only had a very short production run of about 40 units.

In 1973 the Kenbak Corporation sold the rights for the Kenbak-1 to

CTI Educational Products Inc.

It is believed that very few Kenbak-1's were produced by CTI.


The Museum's Kenbak-1 has the CTI logo.

Its Blue case was also produced by CTI, Mr Blankenbaker informed us

that he used cases manufactured by Bud Industries which had a slightly different layout.

He also said the front control panel had a horizontal slot cut in it to potentiality fit a

card reader in the future, this unit does not have this feature.


















CTI Logo


Very interesting description of the

Kenbak-1 on Youtube .