The next time you feel frustrated with your aging personal computer, just watch the video above. In these fifty seconds, the National Museum of Computing fires up the Harwell Dekatron, also known as the Wolverhampton Instrument for Teaching Computation — or, naturally, the WITCH. Holder of the title of the world’s oldest working original digital computer, the WITCH, first built in 1951, went into retirement from Wolverhampton’s Staffordshire Technical College in 1973. A three-year restoration of the computer — all two-and-a-half tons, 828 flashing Dekatron valves, and 480 relays of it — began in 2008. Now, having just finished returning the machine to tip-top shape, they’ve actually booted it up, as you can see. “In 1951 the Harwell Dekatron was one of perhaps a dozen computers in the world,” The National Museum of Computing’s press release quotes its trustee Kevin Murrell as saying, “and since then it has led a charmed life surviving intact while its contemporaries were recycled or destroyed.”
Image: http://www.openculture.com/