QBasic - Step By Step
QBasic tutorial covering fundamental aspects of the language, input and output, control structures, modules / sub procedures, looping, functions, arrays, array-type problems, records, and data files.
BIT Manipulation
Learn how to manipulate individual bits with shifts, masking, and toggling - in a high level language; no use of assembly!
Includes source code in BASIC, but the theory applies to any language that can do math.
Programming in BASIC
A beginner level tutorial that's easy to understand. It teaches
(Q)Basic from the ground up, without assuming you've ever
programmed before. Everything is explained in great detail and as clearly as possible
