Strachey's original folder, including manuscript notes on 'Ferranti Fort Halstead (Kent) machine', miscellaneous codes, notes and queries by Strachey.

'B.T.M. Cards - Punch & Read'. Includes a note of principal computer laboratories and researchers in USA, perhaps for 1952 journey.

Ferranti's List DC 6 of instructions, etc. for Manchester Universal Electronic Computer, with notes and queries by Strachey.

'Radix 32 Input Scheme' (duplicate typescript).

'Proposed acceptance tests for Ferranti Manchester Universal Electronic Computer' (duplicated typescript). 'A radix 10 system of coding for Mark I' (duplicated typescript.)

Bundles of notes, calculations and first drafts for procedures, bearing notes and descriptions by Strachey as follows: 'Multiple length arithmetic'. 'Input D. Needs revision - will not accept blank tape before number sequence...' 'Reconsider when Formal Role working is possible'. 'Check by planting'. 'Worth further consideration'. (This…

Fourteen bundles of notes, calculations and routines.

Folder of calculations and routines, perhaps related to above (some headed Pageprint, Floatpoint, etc.) but kept as loose sheets, not in bundles. 'M.U.C. Various Routines (some untested)'. Large folder of bundles of notes, calculations and routines, which have been divided for ease of handling.

Large folder of bundles of notes, calculations and routines, which have been divided for ease of handling. Input and other routines, (in original folder).

Large folder of bundles of notes, calculations and routines, which have been divided for ease of handling. Sixteen bundles of notes, etc. relating to Floatpoint and Floataid routines. The routines, which go up to 'Mark VI', were begun in 1952; they include one bundle labelled by Strachey 'Completed routines', one bundle consisting of an account of the purpose and use of a floating binary point, and one bundle with correspondence from K.V. Huddart, 1952, perhaps…

Large folder of bundles of notes, calculations and routines, which have been divided for ease of handling. Six bundles of notes dated 12 April 1955, on Bessel functions, Chebychev series, double length arithmetic, correction routines, etc.

Large folder of bundles of notes, calculations and routines, which have been divided for ease of handling. Two undated bundles of notes. Printout using all above routines, with manuscript note by Strachey: 'Examples of the computer output (Manchester University machine). The large sheet is a test of an output routine and consists of the numbers ± 2±n for n < 39. There is one error due to a programme fault'.