Executive Systems Problem Oriented Language

Executive Systems Problem Oriented Language (ESPOL)
Influenced by
Paradigms	Multi-paradigm: procedural, imperative, structured
Family	ALGOL
Developer	Burroughs Corporation
First appeared	1966; 58 years ago (1966)

Final release	Burroughs B6700 B7700 / June 27, 1972; 51 years ago (1972-06-27)

Typing discipline	Static, strong
Scope	Lexical (static)
Platform	Burroughs large systems
OS	Burroughs MCP
ALGOL 60
Influenced
NEWP

The Executive Systems Problem Oriented Language (ESPOL) is a programming language, a superset of ALGOL 60, that provides abilities of what would later be termed a system programming language or machine oriented high order language (mohol), such as interrupting a processor on a multiprocessing system (the Burroughs large systems were multiprocessor systems). ESPOL was used to write the Master Control Program (MCP) on Burroughs computer systems from the B5000 to the B6700. The single-pass compiler for ESPOL could compile over 250 lines per second.

ESPOL was superseded by NEWP.

References

B5500 ESPOL Reference Manual, 1967
B6500 ESPOL Reference Manual, 1970
B6700/7700 ESPOL Reference Manual, 1972

ALGOL programming

Implementations

Technical standards	ALGOL 58 ALGOL 60 ALGOL 68
Dialects	ABC ALGOL ALCOR ALGO ALGOL 68C ALGOL 68-R ALGOL 68RS (ELLA) ALGOL 68S ALGOL N ALGOL W ALGOL X Atlas Autocode (Edinburgh IMP) Burroughs ALGOL CORAL 66 Dartmouth ALGOL 30 DASK ALGOL DG/L Elliott ALGOL Executive Systems Problem Oriented Language (ESPOL) → New Executive Programming Language (NEWP) FLACC IMP JOVIAL Kidsgrove Algol MAD Mary NELIAC RTL/2 S-algol, PS-algol, Napier88 Simula Small Machine ALGOL Like Language (SMALL) SMIL ALGOL
Formalisms	Jensen's device Van Wijngaarden grammar

Community

Organizations

Professional associations	ALCOR Group Association for Computing Machinery (ACM) BSI Group Euro-Asian Council for Standardization, Metrology and Certification (EASC) International Federation for Information Processing (IFIP) IFIP Working Group 2.1 Society of Applied Mathematics and Mechanics (GAMM)
Business	Burroughs Corporation Elliott Brothers Regnecentralen
Education	Case Institute of Technology University of Edinburgh University of St Andrews Manchester University Massachusetts Institute of Technology (MIT)
Government	Royal Radar Establishment (RRE)

People

ALGOL 58

John Backus Friedrich L. Bauer Hermann Bottenbruch Charles Katz Alan Perlis Heinz Rutishauser Klaus Samelson Joseph Henry Wegstein
MAD	Bruce Arden Bernard Galler Robert M. Graham