An arrow then directs the flowchart to a processing step, during which input 1 is added to input 2. This leads to the final step, where the program presents the sum to the user.

A brochure for the GE 210 computer from 1964. BASIC's creators used a similar computer four years later to develop the programming language. Credit: GE / Wikipedia ...

Since the 1960s, BASIC has introduced countless beginners to computer programming. Here's how the language got started, the paths it cleared for Windows and Apple, and where you can still find it ...