In uC's, an Arduino Uno, around August last year, after a mate at work got one.
Generally, at home with an Oric Atmos, then a BBC model B with a Pascal ROM, and during the year I tried in a technical college, a Rockwell Aim-65 (Rockwell AIM-65 computer) for assembler and a VAX 11/780 for everything else (FORTRAN and COBOL, mostly).