| Modula-2+ | |
|---|---|
| Paradigms | imperative,structured,modular,data and procedure hiding,concurrent |
| Family | WirthModula |
| Designed by | Paul Rovner, Roy Levin, John Wick |
| Developer | DEC Systems Research Center (SRC) Acorn Research Center |
| First appeared | 1984; 42 years ago (1984) |
| Typing discipline | Static,strong,safe |
| Scope | Lexical |
| OS | Cross-platform |
| License | Proprietary |
| Majorimplementations | |
| DEC SRC Modula-2+, CAMEL (C and Modula Execution Library) | |
| Dialects | |
| DEC SRC | |
| Influenced by | |
| Pascal,ALGOL,Modula-2 | |
| Influenced | |
| Modula-3 | |
Modula-2+ is aprogramming language descended from theModula-2 language. It was developed atDEC Systems Research Center (SRC) andAcorn Computers Ltd Research Centre in Palo Alto, California. Modula-2+ is Modula-2 withexceptions andthreads. The group which developed the language was led by P. Rovner in 1984.[1]
Main differences with Modula-2:
Modula-2+ was used to develop Topaz, anoperating system for the SRCDEC Fireflyshared memoryasymmetric multiprocessingworkstation.[3] Most Topaz applications were written in Modula-2+, which grew along with the development of the system.[4] Modula-2+ was also used by Acorn in theARX operating system, and to build anintegrated development environment in the Acorn Research Center (ARC).[5] Modula-2+ strongly influenced other languages such asModula-3, but as of 2005, it had disappeared.
The original developers of Modula-2+ were both acquired: Acorn byOlivetti andDigital Equipment Corporation byCompaq. Compaq was bought byHewlett-Packard.Olivetti sold the Olivetti Research Center and Olivetti Software Technology Laboratory (after bought Acorn ARC) toOracle Corporation and was later absorbed byAT&T.[6] DEC have made the SRC-reports available to the public.
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