Built for the Atomic Energy Research Establishment in Oxfordshire, it replaced work done by adding machines.
In November, it was rebooted, after a three-year restoration at the museum.
Design and construction of the 2m (6ft 6in) high and 6m (19ft 8in) wide machine known as the Witch, began in 1949.
The 2.5 tonne computer took up to 10 seconds to multiply two numbers but was reliable and often ran for 80 hours a week.
Kevin Murrell with the Guinness certificate Kevin Murrell: “Delighted” with Guinness World Records’ recognition
Kevin Murrell, one of the museum’s trustees, said: “This was at a time when computers weren’t really expected to work for more than five or ten minutes without breaking.
“Today the fully-functioning computer is proving invaluable in teaching our stream of educational groups about their computing heritage.”
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
