IBM computer brochure from 1979 with some seriously retro office pictures -- Part 1 and Part 2:

Exceptionally compact, yet more powerful than many larger systems, the IBM 4331 Processor is designed to provide advanced computing benefits at a cost comparable to what you're probably paying now for a system with less application capability.

The system with a future. If you're looking for sensible, low-cost entry to full-function data processing, the 4331 opens a new dimension worth considering. It gives you power and capacity you require today and the ability to grow the way you want to... for years to come.

The snarky blog comments on the pictures are also entertaining. (Via Boing Boing.)