4th Class Computers Science Computer and Its Peripherals Moniter

          Monitor  

The monitor or the VDU (visual display unit) is the most common form of output from a computer. The Monitor is an output device that resembles the television screen and uses a CRT (Cathode Ray Tube) to display information. The picture on a monitor is made up of tiny coloured dots called pixels. The monitor is associated with a keyboard for manual input of characters and displays the information as it is keyed in. It also displays the program or application output. Thus, the monitor displays the results of the computer's activities on the screen. Like the television, monitors are also available in different sizes. The display device in modern monitors is typically a TFT-LCD (Thin Film Transistor Liquid Crystal Display). (See Figure 4.1.4)  

 Match the Following:

          A                                           B

1. VDU                                            i.   Modern display unit

2. CRT                                            ii.   Output device

3.   TFT-LCD                                  iii.   Display the information

(A) 1, iii; 2, i; 3, ii                                               

(B) 1, ii; 2, iii; 3, i

(C) 1, i; 2, ii; 3, iii                                               

(D) 1 ii; 2, i; 3, iii

(E) 1, iii; 2, ii; 3, i  

Answer: (B)

Explanation

Correct Option:

(B) Option (B) is matched correctly.

Incorrect Options:

(A) Option (A) is matched incorrectly. Therefore, option (A) is incorrect.

(C) Option (C) is matched incorrectly. Therefore, option (C) is incorrect.

(D) Option (D) is matched incorrectly. Therefore, option (D) is incorrect.

(E) Option (E) is matched incorrectly. Therefore, option (E) is incorrect.    

 Fill in the blanks:

1. The picture on a monitor is made up of________ called pixels.

2. The monitor is associated with a ___________ for manual input of characters.

3. The monitor uses __________ to display information.

(A) Big coloured dots, Mouse, LCD

(B) Small holes, Keys, TFT

(C) Tiny coloured dots, Keyboard, Screen

(D) Tiny B/W dots. Keyboard, VDU

(E) Tiny dots. Mouse, CRT  

Answer: (C)

Explanation

Correct Option:

(C) Options given in (C) are correct.

Incorrect Options:

(A) Options given in (A) are incorrect. Therefore, option (A) is incorrect.

(B) Options given in (B) are incorrect. Therefore, option (B) is incorrect.

(D) Options given in (D) are incorrect. Therefore, option (D) is incorrect.

(E) Options given in (E) are incorrect. Therefore, option (E) is incorrect.