PL/B (Programming Language for Business) is a business-oriented programming language originally called DATABUS and designed by Datapoint in the early 1970s as an alternative to COBOL because its 8-bit computers could not fit COBOL into their limited memory, and because COBOL did not at the time have facilities to deal with Datapoint's built-in keyboard and screen.
A version of DATABUS became an ANSI standard, and the name PL/B was adopted when Datapoint refused to release its trademark on the DATABUS name.