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Hal/S Last modified: Tuesday, July 03, 2007
A high-level programming language commissioned by NASA in the 1970's. Hal/S is a a real-time aerospace programming language that is most known for use in NASA's Space Shuttle program. Hal/S is used in the programming of onboard shuttle software. Initially Hal/S was a FORTRAN preprocessor then called Hal that was written in FORTRAN and generated FORTRAN source code. In the early 1970's the language was rewritten in XPL and renamed Hal/S.
HAL/S, A Real-Time Language for Spaceflight HAL/S is a high-level programming language commissioned by NASA in the late 1960s to meet the real-time programming needs of the Agency.	Related Categories Programming Languages Related Terms FORTRAN High Level Language Application Program Interface high-level language MUMPS programming language source code