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IT Fundamentals (Expanded Edition): Welcome!

Inside the Computer (Expanded Edition) 🔌

Section titled “Inside the Computer (Expanded Edition) 🔌”

You use computers every day: tablets at school, phones at home, game consoles, smart TVs. But what is really going on inside them? In this book you’ll find out. You’ll meet the speedy chef CPU, the memory workbench, and the storage toy box, learn how a computer stores everything as ones and zeros, follow a web page as it is chopped into packets and rebuilt on your screen, lock your accounts with passwords and passkeys, spot scams and fake pop-ups, and solve computer mysteries like a real Fix-It Detective.

Meet the Machine

Kinds of computers, smart devices, input, processing, and output, ports and wireless doorways, and how computers shrank from room-sized to pocket-sized.

A Peek Inside the Case

The CPU, the GPU, memory, bits and bytes, storage, the motherboard, and how hardware and software work together.

Computers That Talk

Networks, routers, Wi-Fi, IP addresses, packets, servers, the cloud, and backups.

Keeping Computers Healthy and Safe

Updates, passwords and passkeys, scam messages and fake pop-ups, battery care, and clean-up time.

Be a Fix-It Detective

The five detective steps, the Big Three Fixes, one change at a time, helper reports, and IT careers.

👉 Chapter 1: Meet the Machine 👉 Chapter 2: A Peek Inside the Case 👉 Chapter 3: Computers That Talk 👉 Chapter 4: Keeping Computers Healthy and Safe 👉 Chapter 5: Be a Fix-It Detective