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65264 Programming LEO I: LEO I Actions

 Home > LEO Computers > Lyons Electronic Office (LEO) Archive > CMLEO/LS - LEO Comput ... s Society Collection > Training and Manuals > Programming > 65263 Programming LEO I > 65264 Programming LEO I: LEO I Actions
 

Section from a training course or manual on programming LEO I, with manuscript notes in an unidentified hand.
Includes:

  • LEO I Actions  [with annotations for LEO II], dated Feb 1956;
  • amendment dated 4 May 1956;
  • Storage and physical characteristics;
  • Timing;
  • Multiplication;
  • Shift;
  • Preset halt;
  • Tube actions;
  • Input Orders and Characteristics;
  • Decimal Orders;
  • Output: Orders and Characteristics;
  • Synthesis Programs;
  • Function Minor-Cycle (Printing);
  • Formed Orders.

Research Comments: This documents gives a useful overview of LEO I, covering orders, input/output, physical characteristics, delay line access time, decimal/binary conversion and reconversion, synthesis orders (initial orders) etc. The handwritten sections are possibly in Mary Blood's handwriting. (LM)

Date : February 1956 to May 1956

Physical Description : 1 file (29 pages), paper; typescript and manuscript

Provenance :
Transferred to the LEO Computers Society archive by LCS Chair, Peter Byford.



Archive References : CMLEO/LS/MN/PRG/65263/1 , CCH LI 12.5 , DCMLEO20210720001-029

Related Topics:
This exhibit has a reference ID of CH65264. Please quote this reference ID in any communication with the Centre for Computing History. 		 
Article: 65264 Programming LEO I: LEO I Actions

This document has been scanned and is available to view online.
Copyright
LEO Computers Ltd copyright
File Size: 7.91 MB

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