Follow along with technology expert Todd McLeod as he discusses optical, magnetic, and SSD storage, all of which are forms of non-volatile computer storage.

A hard disk drive (HDD) is a computer hardware device that stores and retrieves digital data. How does it work and why is it important? Find out in this lesson!

Is your computer running slowly? Learn how to use your system’s Disk Defragmenter tool to rearrange the data on your hard disk and make your computer faster.

In this lesson from computer and technology expert Todd McLeod, learn the fundamentals of optical storage, one of the primary forms of computer storage.

Learn why and how flash memory—including flash drives—store data, with an essential overview of transistors, electricity, semiconductors, and more.

In this short computer essentials lesson, learn how USB flash drives transmit harmful computer viruses, and discover helpful tips for avoiding this predicament.

Follow along with Todd McLeod as he discusses file management on your Windows PC. Learn how to create folders, sort and view computer files, and more.

Computer expert Todd McLeod discusses the importance of and how to securely wipe your hard drive before selling or giving away your computer.

Avoid losing hours—or years—of work in an instant by always creating backups of your computer files. Todd McLeod shares how, using several data backup methods.

In this lesson, follow along with computer expert Todd McLeod as he downloads and installs the free Ubuntu Linux operating system to his laptop.