I’m reading around the history of programming in Go To and was intrigued by the connection between Unix and time-sharing.
This connection is made explicitly in the title of a paper by one of the developers of Unix, Dennis M. Ritchie,
The Evolution of Unix Time-sharing System (PDF). As an interesting aside, the key proposal by the development group that got them a PDP-11 to work on proposed to develop a text editing system and their system ended up supporting the word processing of the patent group. Unix and Electronic Textuality! I knew it.
In early 1970 we proposed acquisition of a PDP-11, which had just been introduced by Digital. In some sense, this proposal was merely the latest in the series of attempts that had been made throughout the preceding year. It differed in two important ways. First, the amount of money (about $65,000) was an order of magnitude less than what we had previously asked; second, the charter sought was not merely to write some (unspecified) operating system, but instead to create a system specifically designed for editing and formatting text, what might today be called a `word-processing system.’ The impetus for the proposal came mainly from J. F. Ossanna, who was then and until the end of his life interested in text processing.
For more on Ossanna and the history of troff see The GNU Troff Manual – 2 Introduction.
Bibliographic reference: Steve Lohr Go To New York: Basic Books, 2001.