Read for concepts, not product memorisation
Select resources that address a gap in your Topic 01 understanding.
Microsoft Learn · Exploring basic computer concepts
A guided foundation covering computing devices, operating systems, applications, networking and security.
Open resource ↗IBM · What is computer hardware?
A professional overview of hardware components and how the operating system coordinates them.
Open resource ↗Microsoft Learn · Fundamentals of computer networking
An official introduction to fundamental networking principles.
Open resource ↗Cloudflare Learning Center · How the Internet works
A conceptual explanation of networks, packets and distributed Internet infrastructure.
Open resource ↗U.S. Department of Energy · Energy-efficient computers
Guidance connecting computer selection and operation with energy efficiency.
Open resource ↗Links and descriptions last reviewed: October 2026.