Early Calculator & Computer Technical Library


In the course of analysing and restoring these machines, a technical library has been accumulated. In many cases the information has been difficult to find and in other cases it is the result of laborious reverse engineering. Some of the information is specific to individual machines while other information is more generic and describes components or technologies.

The Technical Library is a repository for this information, as a service to other collectors and restorers of vintage electronics and for the information of anyone else interested. Information specific to machines is catalogued by machine manufacturer. More general information is in a separate catalogue, according to technology.

Donations of material are most welcome. Please send information via the details on the About/Contact link.

Computer-Specific Data