Chapter-1(Computer Hardware- Internal and External) Sub - Exploring ICT world Class-7

Chapter-1 

Solution

D. Answer the following questions.

1. Define the term peripheral device.

Ans. The term peripheral device defined as  all hardware components that are attached to a computer and are controlled by the computer system, but they are not the core components of the computer and which can be easily removed and plugged into a computer system.

2. Differentiate between printer and projector.

Ans. Printer:- A printer is used to print information that you see on the monitor, to a paper. The printed paper is called printout.

Projector:-  It projects images or video from computer on screen.

3. Describe the port that is used to plug-in keyboard and mouse.

Ans. Universal Serial Bus or the USB port: Connects peripheral devices, such as a mouse or a keyboard or a printer to a computer using the cable.

4. Slots are often called expansion slots. Why?

Ans. Slots are often called expansion slots because slots 

is located on the motherboard that allows you to expand the capabilities of a computer. 

5. Compare the storage capacities of CD, DVD and Blu-ray.

Ans. The storage capacity of a Blu-ray disc equals to 10 recordable DVDs or around 70 recordable CDs.

A.1. The brain of the computer.

    (c) CPU

    2. The connecting points where peripheral devices connect            with  the motherboard.

    (c) Ports

    3. An internal device that converts high voltage to low voltage          power.

    (b) SMPS

    4. An electronic centerpiece of the computer, that connects all          other.

    (d)Motherboard

    5. A pen drive connects to the computer through which port?

    (a) USB port

B. Fill in the Blanks.

1.  A Microphone   is used to record your voice into the computer.

2. CPU is known as the brain of the computer.

3. A Pen drive is also called a flash drive

4. Joystick are used to control the robots, training simulators and flight simulators.

5. Barcode reader are used in supermarkets, library systems, luggage handling at airports and for warehouse stock control.

C. Write (T) for true and (F) for false statements.

1. A memory card is generally used in devices like mobile phones, digital cameras, play station and other similar devices.           [T]

2. A projector is used to print information that you see on the monitor, to a paper.     [F]

3. The printed paper is called printout.    [T]

4. A web camera is used to talk live photos and videos.  [T]

5. The slots into which you connect the mouse/keyboard/external hard disk wires.   [F]