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 Home > LEO Computers > Lyons Electronic Office (LEO) Archive > CMLEO/PB - Peter Bird Collection > CMLEO/PB/PH Photographs > Photographs of LEO I > 54266 LEO I Reliability Test

54266 LEO I Reliability Test

Description of Photograph

Photograph of (left) Ernest Lenaerts and (right) Derek Hemy following the successful LEO Reliability Test. The blackboard reads:

LEO RELIABILITY TEST Started 10.00 hrs 10 Jan 1952
BREAKDOWNS: 5 Lasting 83 mins, Wasting 2 1/2 hrs work
HALTS: 14 Totalling 60 mins
CURRENT TAX WEEK 36 Correct to 2215
Lask wkt fell at 2040
LEO worked for a 59-hour continuous run from 10am on Thurs 10th Jan to 9pm on Sat 12th Jan 1952. It was kept switched on throughout the whole of that period and was engaged on producing the PAYE tax tables.

Caption on reverse: 'Lenaerts & Hemy triumphant!'

Photograph collected by Peter Bird as part of his research for LEO - The First Business Computer (1994).

Date: 12th January 1952

Photographer: Unidentified

Archives Hub References: CMLEO/PB/PH/1/1

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Comment on This Photograph

This exhibit has a reference ID of CH54266. Please quote this reference ID in any communication with the Centre for Computing History.

Photograph of 54266 LEO I Reliability Test


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