We talk about memory a lot when we discuss gadgets, and it's no surprise: it's one of the biggest indicators of performance in the gadgets we all use. But rarely do we stop and think about how it works at the very basic level.

In this video, Dr Steve Bagley explains how logic gates—the simplest of digital systems—are used to store information in computer memory. When you stop and think about how many of those you need, and how small they can be made these days, it's quite amazing. [YouTube]