| 1 |
In light pen the sensing element is called. |
- A. Light cell
- B. Cell
- C. Photocell
- D. None
|
| 2 |
What does a light pe consist of |
- A. A laser beam at its base
- B. A sphericla ball at its lower end
- C. A photocell and an opticla system
- D. A microphone
|
| 3 |
What are teh two most common types of printers. |
- A. Inkjet and CRT
- B. Laser and CRT
- C. Inkjet and Laser
- D. CRT and Plotter
|
| 4 |
What is the main purpose of a computer. |
- A. to process data and produce the desired information
- B. To save data
- C. To provide input
- D. To display output
|
| 5 |
What type of memory is used to temporarily store data for processing by the CPU. |
- A. RAM
- B. ROM
- C. Hard disk
- D. Flash Drive
|
| 6 |
What is the function of a Hard Disk Drive. |
- A. To store data only when the computer is turned off
- B. To store data permanently
- C. To store data temporaily
- D. To store data for a limited time
|
| 7 |
Which of following is type fo sensor. |
- A. Sound sensor
- B. Pressure sensor
- C. Light sensor
- D. All
|
| 8 |
What type of display is used in modern monitors. |
- A. CRT
- B. SMD LED
- C. TFT or LCD
- D. Plasma Display
|
| 9 |
What type of device is a microphone in a computer system. |
- A. Output device
- B. Input device
- C. Memor device
- D. Control device
|
| 10 |
What is a mouse in a computer system. |
- A. A joystic device
- B. A light pen device
- C. A microphne device
- D. A cursor -control device
|
