ICT TOOLS CHAPTER 2.
Q.l. Fill in the Blanks:
(1) In
early 1970s communication was through __________.
(2)__________ is
the information super highway.
(3)__________ are
recently available visual display units.
(4)A_____________________ is
an electronic visual display.
(5)Internet now uses__________ communication techniques.
(6)Earlier we were using__________ communication technique.
Ans.(1) Radio, (2) Internet, (3) LED T.V,
(4) Touch Screen, (5) Digital, (6) analog.
Q.2. State whether following
statements are True or False.
1. Nowadays people prefer Laptops /
Tablet PCs.
2. A touch screen is an electronic
visual display.
3. The GSM standard is rapidly growing
in popularity in the US, South America and certain parts of Asia.
4. Digital communication is not easier
or faster.
Ans. (1) True, (2)
True, (3) False, (4) False.
Q.3. Match the following correctly:
(A)
|
(B)
|
1. Laptops
2. Visual Communication
3. Wireless Communication
4. Touch Screen
|
a) Mobiles
b) Electronic visual display
c) Television
d) Compact
|
Ans: (l-d), (2-c),
(3-a), (4-b).
Q.4.
Answer the following questions in brief:
1. What is a touch
screen?
Ans: A touch screen is an electronic
visual display that can detect the presence and location of a touch within the
display area.
2. What is CDMA?
Ans. CDMA is an acronym which stands for
Code Division Multiple Access. CDMA is the newest and allows for the highest
capacity and highest mobile data throughout.
Ans. Due to Internet the world has come
closer. It has opened door to access several libraries. Communication has
become more easier, faster and secure.
Ans. Different types of televisions are
Color TV., LCD TV., Plasma TV and LED TV.
Ans. A laptop is a compact model of
desktop and can be carried any where easily.
Some of the
advanced mobiles which support internet access, wi-fi, blue tooth, camera, SMS
and MMS systems are known as Tablet PCs.
6. Differentiate
between laptop and desktop.
Ans. A laptop is a compact model of
desktop and can be carried any where easily.
We can use desktop
for storing and retrieving data but it is not a compact model and can't carry
any where easily.
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