ExplainingComputers

ExplainingComputers is produced and presented by Christopher Barnatt, who spent 25 years teaching computing and future studies at the University of Nottingham. He has written over a dozen books on computing, 3D printing and the future of technology. New videos come out every week.

The videos cover hardware, operating systems, storage and new technology. Linux is a regular theme, with guides to choosing a first distribution and keeping a desktop secure. Other videos cover single-board computers, data encryption, long-term storage and running AI models locally. The style is calm, carefully structured and easy to follow, with a monthly roundup of Linux news. Each video explains technical terms as they come up, so newcomers are not left behind.

Some highlights include:

A guide to choosing a first Linux distribution, explaining what the main options are and who each one suits.

A look at how to store data safely for the long term, comparing drives, discs and other media.

Five practical steps for keeping a Linux desktop secure, from updates to firewalls.

The channel has over 1.1 million subscribers.

Understanding how a computer really works, below the apps, is the first step into computer science and software engineering. This channel encourages hands-on learning, such as installing an operating system or setting up a small computer. It suits anyone thinking about computing, cyber security or IT careers.