Asynchronous Transfer Mode (not Automatic Teller Machine, or even, Another Terrible Mistake)
What I said in 1994 is still not wrong.
The Fairisle Cambridge ATM Switch
Fore and Marconi and links to Cambridge are historically very interesting.
much longer ago, a precursor to ATM was the Cambridge Ring-based local area network technology
ATM lives on in BT's Colussus network, which is used to provide dynamic control of unbundling DSL lines. The lines themselves often use ATM to multiplex a single voice channel with a higher speed data channel. At least one of tee chips used to do this was designed by a member of the Computer Lab.