Hardware

Understand the components inside a computer and how they work together.

CPU

Processors, cores and the work a CPU does.

How CPUs work A practical explanation of CPU instructions, cores, clock speed and the work a processor actually does. Beginner · 2 min read

Memory

RAM capacity, speed and generations.

What is RAM? Learn what computer memory holds, how it differs from storage and when capacity matters. Beginner · 2 min read DDR4 vs DDR5 The practical differences between two generations of desktop and laptop memory. Beginner · 2 min read

Storage

How computers keep files and programs after power is removed.

What is an SSD? How solid-state storage keeps files, how it compares with a hard drive and what its labels mean. Beginner · 2 min read