ABC ALGOL

A blast from the past!

The ABC (Algorithmic Business Compiler) ALGOL is an old programming language, and I’ll do my best to write a simple program that prints “Hello World!” in it.

Here’s the code:

START.
  WRITE(STRING("Hello World!")).
STOP.

Let me explain what this code does:

1. START.: This statement starts the program execution.
2. WRITE(STRING("Hello World!").): This statement writes the string “Hello World!” to the output stream. The STRING function creates a string literal, and the ( ) around it are necessary to delimit the string.
3. STOP.: This statement stops the program execution.

To run this code, you’ll need an ABC ALGOL compiler or interpreter, which might be a challenge in itself!

Note that ABC ALGOL is a predecessor of Pascal, and some features may not be immediately familiar to modern programmers.

Image model: ZaxiousXL

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