The English Electric Company Limited KDF9 instruction code provisional description (24/2/61)
English Electric Company Limited
Reference guide to the English Electric Company Limited KDF9 instruction code dated February 24, 1961. Supersedes provisional description dated November 17, 1960. Document provides a general description of the computer, explains the user code and how to modify a KDF9 user code program, supplies examples, a list of user code instructions and describes peripheral equipment. An oversize document, it is stored along the left side of the box.