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An electric Smith-Corona typewriter next to a telephone index book with an A-Z slider.
By the 1980s the modern office was becoming recognisable.
The advent of the PC meant the computer moved from a room in the basement to sitting on the desktop.
Personal computers such as the IBM PC (seen here), the Commodore 64, and the Macintosh 128K introduced a step change in how knowledge was processed.
Not that long before the August 1981 debut of the IBM PC, an IBM computer often cost as much as $9m, as well as requiring an air-conditioned quarter-acre of space and 60 people to run and keep loaded with instructions. In contrast, the IBM PC could process information faster than a 1960s mainframe, for a price tag of less than $1,600.
However, computing technology was still relatively crude by today's standards. In 1980 1GB of hard disk space cost £120,000 in today’s money — compared to about 5p today.
In 1983, the world's first commercial handheld cellular phone, the Motorola DynaTAC 8000X, was also released. A caller could talk for 30 minutes and the LED display and memory could store 30 dialling locations. Bulky mobile phones with a short battery life began to be adopted by managers.
The decade also saw fax machines, printers and push button phones taking over the office.
A close-up of an IBM PC running a WordStar word processor application.