Beginner level · Module 1: Computer Hardware Fundamentals · Lesson 3 of 3
Hardware Safety
Protect yourself, the equipment and the owner's data.
In this lesson you will
- Follow electrical and ESD safety
- Handle components and data responsibly
Key concepts
unpluggingelectrostatic dischargepower supplies and batteriesdata responsibility
The lesson
Always shut down and unplug before opening a computer; remove laptop batteries where possible. Never open a power supply or monitor — they hold dangerous charge.
Static electricity can damage components. Use an antistatic wrist strap or touch bare metal on the case, and hold parts by their edges.
Swollen batteries are a fire risk: stop using them and dispose of them safely. Respect the owner's data — ask permission and never browse personal files.
Step by step
- Practise the safe shutdown and unplug routine.
- Use a wrist strap.
- Identify a swollen battery from photos.
- Write your data-respect rules.
Practice activity
Complete the hardware safety checklist.
Expected result: A signed checklist and demonstrated safe practice.
Check your understanding
-
Should you open a power supply to repair it?
Show answer
No, it can hold a dangerous charge.
-
What should you do with a swollen battery?
Show answer
Stop using it and dispose of it safely.
Taught live by an instructor — online or in person. Free course lessons are for self-study and do not lead to a certificate — see registration options.