The Unix Time-Sharing System

The Unix Time-Sharing System (1974)

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by D. M. Ritchie , K. Thompson

Venue:	Communications of the ACM
Citations:	536 - 14 self

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@ARTICLE{Ritchie74theunix,
    author = {D. M. Ritchie and K. Thompson},
    title = {The Unix Time-Sharing System},
    journal = {Communications of the ACM},
    year = {1974},
    volume = {17},
    pages = {365--375}
}

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Abstract

Unix is a general-purpose, multi-user, interactive operating system for the larger Digital Equipment Corporation PDP-11 and the Interdata 8/32 computers. It offers a number of features seldom found even in larger operating systems, including i A hierarchical file system incorporating demountable volumes, ii Compatible file, device, and inter-process I/O, iii The ability to initiate asynchronous processes, iv System command language selectable on a per-user basis, v Over 100 subsystems including a dozen languages, vi High degree of portability. This paper discusses the nature and implementation of the file system and of the user command interface. I.

Keyphrases

unix time-sharing system demountable volume asynchronous process ii compatible file dozen language iv system command language hierarchical file system high degree file system user command interface digital equipment corporation pdp-11 operating system interactive operating system per-user basis