Editing System Development Corporation (section)

== Software projects ==
In the 1960s, SDC developed the timesharing system for the [[AN/FSQ-32]] (Q32) mainframe computer for [[Advanced Research Projects Agency]] (ARPA). The Q-32 was one of the first systems to support both multiple users and inter-computer communications. Experiments with a dedicated modem connection to the [[TX-2]] at the [[Massachusetts Institute of Technology]] led to computer communication applications such as [[email]]. In the 1960s, SDC also developed the [[JOVIAL]] programming language (Jules' Own Version of the International Algorithmic Language, for Jules Schwartz) and the [[Time-Shared Data Management System]] (TDMS),<ref>{{cite book |last1=Franks |first1=E.W. |title=Proceedings of the April 26-28, 1966, Spring joint computer conference on XX - AFIPS '66 (Spring) |chapter=A data management system for time-shared file processing using a cross-index file and self-defining entries |date=1966 |page=79 |chapter-url=https://www.computer.org/web/csdl/index/-/csdl/proceedings/afips/1966/5067/00/50670079.pdf |access-date=2018-07-27 |archive-date=2018-07-27 |archive-url=https://web.archive.org/web/20180727212117/https://www.computer.org/web/csdl/index/-/csdl/proceedings/afips/1966/5067/00/50670079.pdf |url-status=dead |doi=10.1145/1464182.1464191}}</ref> an [[inverted file]] [[database system]]. Both were commonly used in [[Real-time computing|real-time]] military systems.