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Modula-3 Countdown Timer - Modula3 Typing CST Test

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Modula-3 Countdown Timer — Modula3 Code

Counts down from 5 to 0.

MODULE Countdown;
IMPORT IO;
VAR count: INTEGER := 5;
BEGIN
	WHILE count >= 0 DO
		IO.Put("Countdown: "); IO.PutInt(count,0); IO.PutLn();
		count := count - 1;
	END;
	IO.PutLn("Done!");
END Countdown.

Modula3 Language Guide

Modula-3 is a high-level, statically typed programming language designed for safe systems programming, modularity, and object-oriented programming. It emphasizes simplicity, safety, and readability while providing features suitable for building large, robust software systems.

Primary Use Cases

  • ▸Safe systems programming
  • ▸Concurrent applications
  • ▸Compiler development
  • ▸Networked and distributed systems
  • ▸Educational projects on modular programming

Notable Features

  • ▸Strong static typing with safety guarantees
  • ▸Module system for large-scale software organization
  • ▸Garbage collection for memory safety
  • ▸Exception handling and concurrency primitives
  • ▸Support for objects, generics, and interfaces

Origin & Creator

Modula-3 was developed in the late 1980s by the DEC Systems Research Center and Olivetti Research Center, building on ideas from Modula-2 and Pascal, with contributions from several academic and industry researchers.

Industrial Note

Modula-3 is used primarily in academic research, legacy systems, and projects requiring safe and concurrent programming in a modular architecture.

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