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BY Damien Coleman, Product Manager/ EBI Specialist at Snap-on 2 020 marked Snap-on’s 100th year. To recognise this incredible milestone, Snap-on released a graphic to celebrate the occasion (See Fig.1). A symbol appears in both zeros of the 100. The first zero has a hexagonal centre to symbolise a socket. This is a link to the origins of the company and the game-changer that is the interchangeable socket. The second zero has the on/off symbol. This shows how Snap-on has adapted to the ever-changing landscape of the automotive repair industry and the importance of diagnostic tools to the industry. The reason we have a 1 and 0 in the on/off symbol is a link back to the binary system (see Fig.2). Interestingly there is a pertinent link between the Binary System, Snap- on Diagnostics and Cork, Ireland. Snap-on Diagnostics has an office in Cork. This facility is one of several Snap-on global engineering sites with a proud history of R&D and innovation. The link between Cork and the Binary system dates back further still, in fact all the 22 AFTERMARKET NOVEMBER 2021 TECHNICAL/SNAP-ON www.aftermarketonline.net way back to 1849. A university professor named George Boole, born in Lincoln in England, moved to Cork in 1849 and became the first Professor of Mathematics at University College Cork. In 1847 Boole introduced his work on Boolean algebra in his first book, The Mathematical Analysis of Logic. In its most fundamental form Boolean algebra is based on a mathematical statement being either true or false, on or off, 1 or 0. This logic is fundamental to the operation of modern computing technology. In recent times, advances in data transfer between electronic control modules on motor vehicles has allowed various systems within the vehicle to communicate at data transfer rates previous impossible. Boolean logic Electronic control modules process data from various sensors and modules controlling multiple systems. Control modules operate on the principle of Boolean logic, i.e. the Binary System. This is where a statement is either true or false. True is identified by a logic 1 and false by a logic 0. Damien considers the history of Binary, the interesting link to Snap-on and how it affects the way in-car circuits function A ZERO AND ONE SUM GAME