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Bill Buxton on X: "1/3 In 1952, two engineers from Ferranti Canada, Tom Cranston and Fred Longstaff, built the first trackball, and built it using a Canadian 5-pin bowling ball. The trackball
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Kensington (K72363WW) Wireless Trackball - Orbit Fusion Trackball Mouse with Scroll Ring; Ergonomic Computer Mouse for Right Handed Users, Ideal for Small Desk & Home Office,Black : Amazon.co.uk: Computers & Accessories
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