State four challenges experienced by Computers users who rely on Cathode Ray tube Monitors for display.

Question 1
Four changes experienced by computers used in schools:

1. Physical damage to keys and casing from rough handling.
2. Accumulation of dust inside components reducing performance.
3. Frequent virus infections from shared usage.
4. Wear and tear on peripherals like mice and keyboards.

Question 2
Four reasons computers are suitable for personal use:

1. Privacy: Users can store personal data securely without sharing.
2. Convenience: Accessible anytime at home or on the move (with laptops).
3. Customization: Install preferred software and personalize settings.
4. Portability: Laptops allow use in different locations easily.

Question 3
Four things likely to cause eye strain in the computer room:

1. Glare from direct light on the screen.
2. Prolonged screen time without breaks.
3. Poor room lighting (too dim or too bright).
4. Small font sizes or low screen resolution.

Question 4
Four factors that made Karanja's laptop (Ksh 50,000) more expensive than Justine's desktop (Ksh 25,000):

1. Portability: Compact design for mobility.
2. Battery: Built-in rechargeable battery.
3. Integrated components: Smaller, efficient motherboard and parts.
4. Display: High-quality built-in LCD screen.