<language> A high-level programming language designed by Niklaus Wirth at
ETH in 1978. It is a derivative of Pascal with well-defined interfaces between
modules, and facilities for parallel computation. Modula-2 was developed as the
system language for the Lilith workstation.
The central concept is the module which may be used to encapsulate a set of
related subprograms and data structures, and restrict their visibility from
other portions of the program. Each module has a definition part giving the
interface, and an implementation part.
The language provides limited single-processor concurrency (monitors, coroutines
and explicit transfer of control) and hardware access (absolute addresses and
interrupts). It uses name equivalence.
DEC FTP archive.
["Programming in Modula-2", N. Wirth, Springer 1985].
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