100 years since Alan Turing's birth: A look back at computers

On the occasion of the 100th birth anniversary of Alan Turing, a pioneer in the field of computing, we take a look back at computers.

Image: 1929: Inside the tote room at Ascot race course showing the tote machines.
The first combined computer-calculator and wristwatch to be produced, known as 'Pulsar', on show at the International Watch and Jewellery Trades Fair at Wembley, London.
1955: Rev Ellison, technical consultant on the Univac project working on a control panel which gives direct access to Univac. This allows him to see exactly how the indexing is progressing and to check it with the bible he is holding.
1946: A utility model of the programmable electronic computer ENIAC (electronic numerical integrator and computer) at Welwyn Garden City.
1946: A utility model of the ENIAC (Electronic Numerical Integrator and Computer). It was later revealed that the first had been the British wartime code-breaking machine, 'Colossus'.
Sixteen year old Christine Andrews is the first person to use an 'instant information machine' called a Directomat at Victoria station. The machine gives answers to the 120 most often asked questions at the enquiry office.
1959: Dr HA Thomas, manager of the Instrumentation and Control section of Unilever's engineering department gives the Faraday lecture at London's Festival Hall. His subject is 'Automation' and here he demonstrates the workings of an electronic calculator or computer.
1951: London Windmill Theatre girls Wanda Altar and Rae Berry play a game called 'Nim' on the Ferranti Nimrod Digital Computer on show at the Science Museum Festival of Britain Exhibition. The game demonstrates the basic principles of computing.
1958: A woman operating an 'electronic brain' used by a German mail order business to open letters, take details, check on stock availibility and price, invoice orders and inform departments concerned.
1936: The new robot post office sorting machine being used in the foreground, and the old manual method in the background.
1963: A computer being used at William Hill Ltd bookmakers.
1956: Sheilah Ablett at work with the E101 computer at the British Institute of Management in London.
1978: The Interbank desk of the Midland Bank International Division, where the exchange rate is called.
A man replaces a magnetic tape data storage drive in an early model office computer, mid 1970s.
A woman in a knit dress with flared sleeves works at an early model desktop computer made by Servus, 1970s.