Dartmouth Time Sharing System

Dartmouth Time-Sharing System
Developer	Dartmouth College
Written in	Dartmouth BASIC, ALGOL 60, FORTRAN, COBOL, APL, DXPL, DYNAMO, GMAP, LISP, MIX, PL/I, SNOBOL
Working state	Discontinued
Initial release	1964
Platforms	GE-200 series, GE-635 series, Honeywell 6000 series
Default; user interface	Command-line interface
Official website	dtss.dartmouth.edu

The Dartmouth Time-Sharing System (DTSS) is a discontinued operating system first developed at Dartmouth College between 1963 and 1964.^[1] It was the first successful large-scale time-sharing system to be implemented, and was also the system for which the BASIC language was developed. DTSS was developed continually over the next decade, reimplemented on several generations of computers, and finally shut down in 1999.

General Electric developed a similar system based on an interim version of DTSS, which they referred to as Mark II. Mark II and the further developed Mark III was widely used on their GE-600 series mainframe computers and formed the basis for their online services. These were the largest such services in the world for a time, eventually emerging as the consumer-oriented GEnie online service.

^ Rankin, Joy Lisi (2018), A People's History of Computing in the United States, Cambridge, Massachusetts: Harvard University Press, ISBN 9780674970977

[Rankin-1] Rankin, Joy Lisi (2018), A People's History of Computing in the United States, Cambridge, Massachusetts: Harvard University Press, ISBN 9780674970977

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