Burroughs' B6500/B7500 stack mechanism

Burroughs' B6500/B7500 system structure and philosophy are an extension of the concepts employed in the development of the B5500 system. The unique features, common to both hardware systems, are that they have been designed to operate under the control of an executive program (MCP) and are to be programmed in only higher level languages (e.g., ALGOL, COBOL, and FORTRAN). Through a close integration of the software and hardware disciplines, a machine organization has been developed which permits the compilation of efficient machine code and which is addressed to the solution of problems associated with multiprogramming, multiprocessing and time sharing.