Maybe you’re confusing to things:
– a “Turing machine”: an abstract concept of a device, which would be pointless to actually build, that Turing invented to be able to philosophize about what computers can and cannot do in principle. It involves a storage tape and a read/write head
– the “bombs” at Bletchley Park, which Turing and his colleagues designed and built to crack the Enigma code. They involved many clicking relays, hence the name.
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