We had a PET, the first one, with the coloured keys. Then our computer room was equipped with serveral Commodore 8032 around 1984-1986. Later they have been replaced by boring Epson PCs. I remember I have also seen a Commodore 64 somewhere.
At University (1989-1995) we had mostly Sun Sparc Stations and some Silicon Graphics. So I never had to work with Windows.