Brings back memories...
Of my first 'real' job in IT. It was on the Isle of Man working for a small company that did systems software ('C' compilers, assemblers etc). They had a PDP 11/23 and an 11/34 running RSX11 (? - it's been 30 years...). They had the PDPs to develop and test cross-compilers so you could code on a PDP11 and compile for a new-fangled 68K processor, for example. 'C' compiler used was Whitesmiths...
Happy days...
Biting the hand that feeds IT
