Ch - 1 | External Hardware Devices | Notes

 

Chapter 1 - External Hardware Device

    

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SPICER HIGHER SECONDARY SCHOOL (ICSE/ISC)

AUNDH ROAD, PUNE-411007

 

Subject:  Computer App.

STD       :   VII (A - J)                                                                                                           Teacher: Mr. Israel Hembrom

 

1^st Term

Chapter – 1:  External Hardware Devices (Notes)

A.      Multiple Choice Questions.

 

1.      Which of the following can store the largest amount of data than others?

a.   Pen drive                   b. CD                                       c. DVD

 

2.      Which of the following refers to the process of pressing the keys of the keyboard?

a.   Writing                         b. Typing                               c. Scrolling

 

3.      Who invented the computer mouse?

a.   Douglas Engelbart  b. Tim Berners – Lee c. Dennis Ritchie

 

4.      Where are the pictures saved in a digital camera?

a.   ROM                             b. Memory chip                 c. CD

 

5.      Which of the following enables you to create a drawing on the computer by hand?

a.   MICR                           b. Touchscreen                        c. Graphics Tablet

 

6.      What is the tem used to refer to a printed paper?

a.   Printing                         b. Printout                            c. Print handout

 

7.      What is the other name of pen drive?

a.      Flash drive               b. Smart drive                         c. Active drive

 

8.      Which of the following is an output device?

a.      Printer                      b. Webcam                              c. Microphone

 

 

9.      In case of touchscreen phones, the screen of the phone takes by :

a.      Touching Finger     b. Touching Pencil                   c. None of these

 

10.  Which device will you use to input voice or music into the computer?

a.       Scanner                                           b. Microphone                          c. Touchscreen

 

B.      Fill in the blanks.

 

1.      Pen drive is a small portable device used to store a huge amount of data.

2.      A plotter is bigger than a printer.

3.      A microphone is used to input voice, music or other sound into the computer.

4.      Flatbed scanner works like a photocopy machine.

5.      The output of a monitor is called softcopy output.

6.      Secondary memory is also called external memory.

7.      DVD can store up to 4.7 GB of data.

 

C.      True or False

 

1.      A pen drive can store less data than a CD. False

2.      A mouse usually has two buttons and a scroll wheel. True

3.     A plotter is smaller in size than a printer. False

4.      A monitor is an example of input device. False

5.      CDs and DVDs are output devices. False

 

D.      Matching

 

Column A	Column B
1.      DVD 2.      Projector 3.      Plotter 4.      Blu-ray disc 5.      Speaker	a.   Used to listen to music or other sounds b.   Can store upto 4.7 GB data c.    Used to display output on a large screen d.   Used for printing maps and posters e.   Can store high definition video content

 

            Answers: 1-b, 2-c, 3-d, 4-e, 5-a

 

E.       Answer the following questions:

 

1.      What are input devices?

Devices which are used to given input commands to computers are called Input devices.

 

 

 

2.      Write the use of the following devices:

a.      Webcam:  A webcam is used to capture real time videos and images in the computer that can be shared across the network with our friends and relatives.

b.      Microphone: A microphone is used to input voice, music or other sound into the computer.

c.       Digital camera: A digital camera is used to capture pictures. It stores the pictures in a memory chip.

d.      MICR: It is used to read characters that are printed on documents like cheques.

e.      Graphics Tablet: A graphics tablet (digitizer) enables a user to create drawing on the computer by hand.

 

3.      Write a short note on smart card reader.

Smart cards are basically of two types: memory cards and microprocessor cards. Memory cards have only a memory chip. They allow only some predefined operations on the card. However, the microprocessor card has memory chip as well as microprocessor components. You can add, delete and manipulate the data on the card.

 

4.      What is plotter?

·         A plotter is bigger than a printer.

·         It draws pictures on a paper based on commands rom computer.

·         Plotters differ from printers in the way they draw lines using a pen.

·         Plotters are widely used for printing maps, posters, etc.

 

5.      Write the difference between a monitor and a projector.

Monitor a.  It displays output on a small screen. b.   Only few people can see the output.

Projector a.   It displays output on large screen. b.   Big audience can see the output.

 

6.      Write the use of a CD. What are its types?

CD is a type of storage device with the capacity upto 700MB.

            There are 3 types of CDs available and they are:

                                                                                  i.    CD-ROM: Compact Disc Read Only Memory.

                                                                                ii.    CD – R: Compact Disc Recordable.

                                                                              iii.    CD-RW: Compact Disc Rewritable.

 

 

           

7.      What is a pen drive?

Pen Drive is a small portable device. It stores huge amounts of data than CDs and DVDs.

It can store upto 32 GB data. Using pen drive, you can easily store and transfer the data from one computer to another.

 

8.      Write the use of the following devices:

a.      Speakers: Speakers are used to listen to music or other sounds from the computer.

b.      Printer: A printer prints the data on the paper from the computer. It provides hardcopy output. A printed paper is called printout.

 

 

F.       Application Based questions:

 

1.      Rishi went to a bank to withdraw money through cheque. The banker inserted his cheque in a device. He wants to know the name of the device. Suggest him the answer.

 

The name of the device where cheque was inserted is MICR (Magnetic Ink Character Reader).

 

2.      Rohan wants to display his presentation on a large screen. Which device should he use to do so?

 

Rohan should use Projector to display his presentation on a large screen.