Folder of information about the Automatic Timing Routine (ATR) for the Elliott Brothers 405 computer, created by David Pentecost in 1961. Contents include: a) Elliott Brothers standard documentation for the Automatic Timing Routine for customers, consisting of 5 pages of programme specification b) Two pages of copies of hand-written programme coding sheets for the Automatic Timing Routine (by David Pentecost) (original master copy of the sheetswould have been filed elsewhere). c) A draft Elliott typed specification for the Automatic Timing Routine d) A blank programme sheet for the 405 e) Three draft versions of the Automatic Timing Routine f) life-size copy of the Elliot 405 flowcharting template g) Sheets relating to testing and timing h) Miscellaneous working papers, handwritten (20 sheets) Information about the Automatic Timing Routine (ATR) for the Elliott Brothers 405 computer 1961