Topic: Electricity, Power, and the Core Components of a Computer

❓ Essential Question

How do electricity and hardware components interact inside a computer, and why does understanding power matter for real IT field work?

⭐ Key Ideas

• All computers depend on controlled electricity.
• Ohm’s Law explains how voltage, current, and resistance interact.
• Hardware components need the correct power and connections.
• CPUs, RAM, storage, and the motherboard form the core system.
• Incorrect power = failure, overheating, or component damage.

🔑 Vocabulary

Voltage (V)

Current (I)

Resistance (R)

Wattage (W)

PSU

Motherboard

CPU