1. What is the MOST important part inside a computer?
Let the guessing game begin!

2. Computer Fan Both desktop and laptop.
Attention: all computers want to live in the North Pole, just like Santa Claus.

3. MOBO
Motherboard:
Just like an aircraft carrier, mothership.

4. RAM Radom Access Memory
Why random? It is the opposite of sequential (Think about the audio tape)

5. CD/DVD/Blu-Ray Drive Less commonly used.
Why: Apple wants to make more money from media purchase.

6. CPU
Central Processing Unit
Similar to human brain

7. Mouse Help! An animal invades a computer!
Why mouse over a human finger (as an input device)?

8. Keyboard
Different from music keyboard
Most commonly used input device

9. Monitor
Output device
CRT vs LCD
The bigger the better
Dual screen

10. Network Interface Card
Wired Network

11. Ethernet Cable
Cat5
Cat6
Not commonly used

12. Wireless Card Wireless network access Inside each laptop
In most cases, it is replaceable.

13. Hard Drive Long-term storage Magnetic vs SSD (solid state drive)
Storage volume vs Price

14. Power Supply Unit
AC to DC conversion

15. Video Card
GPU: graphics processing unit

16. Printer
English professors love it!

17. Sound Card
Sound input
Sound output
Color coding of ports

18. Which one is the most important?
To computer
To human

19. Two things for Average Joe
Regular backup
Virus scan