LEAPS Elliott 405

[This page will be constantly updated as the documents are prepared. Be sure to check back with us soon.]

The National-Elliott 405 was a valve-powered 32-bit computer introduced in 1956. The UK’s GPO – the then-nationalised post office and telecommunications organisation – used two of them for its London Electronic Agency for Pay and Statistics (LEAPS).

The manager of the computer centre, SD ‘Big Doug’ Selway, kept a number of documents relating to his time there, and that’s what you can find here.

For more explanation and a general introduction, read this post.


Online resources: