Chapter 1 Computer Overview Grade 5 ( Sunrise Publication - 2082 edition)

 Q1. Label the different parts of system unit in the following figures:

a. CD/DVD drive

b. USB Port

c. Audio In/Out Port

d. Power button 

e. Restart button

a. Audio In/Out ports

b. USB ports

c. VGA port

d. PS/2 Ports

e. Ethernet port

Q2. Match the following:

a. Power Button → Used to read/write data from DVD

b. USB ports → Used to connect different USB devices

c. DVD Drive → Used to read/write data from DVD

d. VGA port → Used to Connect Monitor with the system Unit

e. Audio In Port → Used to connect various audio devices.

Q3. Fill in the blanks with the words from the box below:

a. instructions

b. wirelessly

c. process

d. Computare

e. VGA

f. CPU

Q4. Answer the following questions:

a. Define a Computer.

Ans: Computer is an electronic machine that can perform different kinds of tasks according to a set of instructions given to it.

b. What are the basic parts of a computer?

Ans: The basic parts of a computer are Monitor, Keyboard, Mouse and System Unit.

c. How does a computer work? Explain with an example.

Ans: Computer works on the principle of IPO which is Input → Process → Output.

         [Data: 7, 9, 11 ]  -- >  [ Addition ]  -- >      [ 27 ]

             (Input)                      (Process)              (Output)

d. Write any four characteristics of a computer.

Ans: The four characteristics of a computer are:

a. High Speed        b. Accuracy         c. Diligent        d. Versatile

e. Write any four areas where computers are used.

Ans: The four areas computers are used are:

a. Home        b. School         c. Office        d. Hospitals

f. Explain how computers are used in education.

Ans: Education is one of the important areas of computer. In schools and colleges, computers help in both teaching and learning. Students can use computers to search for books, read online books, and explore magazines. Computer also help to prepare the progress card, present the multimedia content and so on.

g. Why are computers called accurate machines?

Ans: Computers are called accurate machines because they never produce wrong output, if input is correct.

h. Why are computers called diligent machines?

Ans: Computers are called diligent machines because they can work continuously for a long period of time.

i. What is meant by versatility of computer?

Ans: The computer can be used in different fields to perform various tasks. This feature is known as versatility of computer.

j. What is a computer mouse?

Ans: A computer mouse is a palm sized input device that consists of two or more buttons at its top and a scroll wheel. It is also called pointing device.

5. Write Single word for the following statements.

a. Diligent

b. Information

c. GIGO

d. CPU

e. Versatile

f. Mouse

g. Ethernet Port

h. Monitor Port.

Q6. Write the full forms of the following:

a. VDU: Visual Display Unit

b. CPU: Central Processing Unit

c. USB: Universal Serial Port

d. MHz: Mega Hertz

e. GHz: Giga Hertz

f. ENIAC: Electronic Numerical Integrator And Computer

g. LED: Light Emitting Diode

h. LCD: Liquid Crystal Display

i. SSD: Solid State Drive

j. USB: Universal Serial Bus

Q7. Draw a picture of front view of a system unit.

Ans: Draw the image from page number 11 and mention its part too.