Allen-Babcock Computing was founded in Los Angeles in 1964 by James D. Babcock and Michael Jane Allen Babcock to take advantage of the fast-growing market for computer time-sharing services.
[1] In 1966 the company developed "RUSH" (Remote Users of Shared Hardware), an interactive dialect of PL/I.
[3] CPS was a subset of RUSH prepared by IBM with the permission of Allen-Babcock.
[4] During the early 70's Allen-Babcock leased copies of the RUSH software to several industry owners of the IBM 360 series computer systems.
These lessees sought to use RUSH internally to provide their companies access to time sharing on their Internet networks.