Technical Documents

Brian Wichmann

This table refers to technical documents for the KDF9 which were typically not released to users. Size gives the memory size of the PDF file.
Catalogue of all the KDF9 Techncial documents
Title (description) Date Author Pages Size Item
The KDF9 Paper Tape Reader 27.3.61 R. T. Shaw 32 1
KDF9 - Transformer Sequence Units 15.11.62 J. R. Lucking 19 6.8Mb 2
An Introduction to the KDF9 Computer 9.8.62 J. A. Edwards 23 16.1Mb 3
Main Control Sequence Charts - KDF9 Computer Last correction dates are typically in 1963 Ring binder, with no cover sheet, containing 60-70 sheets. 4
Programmes to Investigate Timings on KDF9 10.6.63 Miss P. Fell 5 5.4Mb 5
Corrections to Report No. K/GD.y.99 "The KDF9 Mulitplier - Divider Unit Part A 12.8.63 J. R. Ellison 3 0.7Mb 6
The Input Output Control of KDF9 29.4.63 D. J. Caton 34 8.6Mb 7
The KDF9 Magnetic Tape buffer 26.4.63 A. Robinson 17 8
List of Abbreviations used in KDF9 Peripheral Transfer Equipment 4.7.61 A. W. Nicholson 15 9
Interruption Flexowriter for KDF9 7.9.60 A. W. Nicholson 20 10
The distinction Between 'Unready, Busy and Inoperable' in KDF9 19.1.61 A. W. Nicholson 4 11
Floating Point Arithmetic in KDF9 6.12.62 J. R. Lucking, J.P. O'Neil 30 11.6Mb 12
Notes on KDF9 Main Control 7.9.62 J. A. Edwards 40 17.8Mb 13
Figures Relating to Notes on KDF9 Main Control 34 sheets 9.5Mb 14
The KDF9 Multiplier-Divider Unit Part A 17.6.63 J. R. Ellison 51 29.6Mb 15
The KDF9 Paper Tape Punch buffer 15.5.63 D. J. Caton 7 16
KDF9 Workbook June 63 96 loose leaf sheets, fastened together with two metal rings 17
Notes on KDF9 Arithmetic Control 28.9.62 J. A. Edwards 17 6.4Mb 18
Shifting and Shift Control 10.12.62 J. R. Lucking, J.P. O'Neil 25 10.3Mb 19
Basic organisation of controls; and instruction timings 9.7.62 J.R.Lucking, J.P.O'Neil 38 8.7Mb 20
The KDF9 card reader (available from Sydney) 6.7.63 K. Patterson 52 21
List of Abbreviated Names and Terms Used in KDF9 logic 25.6.62 J.P.O'Neil 19 22
Highest Priority Ready Peripheral Buffer Address Selector 25.7.63 A. W. Nicholson 4 23
The KDF9 Main store 24.8.62 J. A. Edwards 32 24
Interruption and Fetch Next Instruction Sequences of the KDF9 Main Control 1.7.62 J. R. Lucking 24 43.1Mb 25
Around 40 circuit diagrams Undated --- about 40 26