In this lesson, we'll teach you about the essential programming that makes computers function, what's called the BIOS or UEFI. Plus, you'll learn about the special tools we use for storing configuration options for BIOS and UEFI. It's awesome stuff! We'll also teach you all about motherboards, the bedrock of every PC. You'll learn form factors, types of expansion slots, and installation steps for expansion cards. In this lesson, we'll also cover upgrading, installing, and troubleshooting motherboards.