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| PDF Notes |
SPICER
HIGHER SECONDARY SCHOOL (ICSE/ISC)
AUNDH ROAD,
PUNE-411007
Subject: Computer App.
STD
: VII (A - J) Teacher:
Mr. Israel Hembrom
1st 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.
