Do terminals count? Adm3a from 1976
I regularly used my Rasberry Pi last year with an Adm3a terminal from 1976, 144 LSI silicon chips, one of the last terminals AFAIK to use descrete logic rather than a CPU. Kit verson (hand assembled) still working, except for lack of lower case ROM and RAM (optional extra at the time), which needed an EPROM daughter board to be made.
I only disconnected it to make room to restore a 1938 pre-war television, as my next project. See