The article talks about offices but most of the pictures show data centers. As nobody (except administration, IT personal or "operators", how they where called

The article talks about offices but most of the pictures show data centers. As nobody (except administration, IT personal or "operators", how they where called back then) is working in data center today, most folks did not work there back in the 1970s. There is literally only one photo which seems to show a cubicle.