This text investigates the fundamental mechanics of programming a microcomputer using the 6502 microprocessor architecture. Caxton C. Foster, a professor of computer and information science, utilizes his academic background to provide a structured introduction to machine language. The book employs a pedagogical framework that breaks down complex hardware operations into manageable programming tasks for the early microcomputer enthusiast.

Experts recognize this as a foundational text for understanding the 6502 microprocessor during the early era of personal computing. Readers frequently note the clarity of the technical explanations despite the age of the hardware covered.