It was industry standard in the day.
I remember a HR friend of mine relating the story of a colleague who laughed at a C.V. that included a reference to experience in Lotus 123. He was ridiculing the C.V. because he thought 123 was a PC racing game.
It made me be careful about my CV for a few years after.... experience in business software packages; Lotus 123 spreadsheet, Candy Crush database, Super Mario Word processing....
