Networking concepts part 2

AIM OF THE PRESENTATION
To learn about:-
Computer Networks and its Components
Advantages of Networking
Networking Devices
Networking Terminology
Networking Media
Protocols
Types of Networks
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 Efficient use of storage
media.
 Preserving information.
 Reduction in hardware
costs.
 Efficiency
 Redundancy
 Quickest document
delivery
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There are two types of networking
media
Wired
And
Wireless
Lets discuss these in details one by
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 Ethernet cables
Has eight wires
Connects various devices such as PCs, routers, and
switches within a LAN
Advantage:
Less power consumption
Drawback:
Requires Ethernet adapter card on the motherboard to
connect the Ethernet cable
Types:
Crossover cable : designed to connect two computers
without a hub or router
Straight-through cable: It’s both ends are identical, it
is used to connect computer to a router, or a switch.
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 Coaxial cables
Is used in transmission of videos, communication signals, and is
maily used by the cable television industry to connect TVs to a cable
TV service or ste top box
It consists of central copper wire surrounded by insulation and a
shield of braided wire.
Advantage:
It has high bandwidth and greater transmission capacity
Relatively inexpensive
Better protection against electromagnetic disturbances
Disadvantage:
High installation cost
High maintenance cost
Types:
Baseband coaxial cable: quick transmission of a single signal at a
time. Mainly used for LANs
Broadband coaxial cable: multiple signals at the same time. Used
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 Optical Fiber cable
Large capacity to transfer data
Very high speed
The glass threads are capable of transforming
data converted into light signals at extremely high
speed
High resistant to signal interference
Provides better transmission by providing high
bandwidth
Disadvantage: It is fragile and high
maintenance cost.
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BLUETOOTH
 It uses low power radio waves.
 It enables short-range communication between
phones, computers and other network devices.
 Mainly used for PANs with maximum range of
upto 240 meters depending on the version of
Bluetooth used
 Bluetooth icon indicates that a device is enabled
with Bluetooth.
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INFRARED TECHNOLOGY
 This technology is used for short range communication which covers
approximately 5 meters of distance.
 Majorly used to exchange information between computers, cellular
telephones and faxes
 It transfer data by emitting infrared waves through infrared LEDs
 It can establish communication only between two devices at a time.
 These signals cannot penetrate through walls or other obstructions.
 These work only in the direct line of sight.
 Infrared waves or signals are focused into a narrow beams from end to end
using a plastic lens, which is converted into electric signals by receiver.
 E.g. Remote Control

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WI-FI
 Wi-Fi stands for Wireless Fidelity
 Used for LANs
 Uses radio waves to send information
 This technology establishes a secure, reliable and fast wireless
connection between electronic devices and internet.
 Device requires wireless adapters to capture Wi-Fi signals
 Advantages:
Without any wire it can establish connection
Relatively inexpensive
Can be accessed where installation of cables is not posssbible
It supports multiple connection of devices
Disadvantages:
High power consumption
Slower than wired medium
Fragile to noise interference

NETWORKING HELPS US TO USE STORAGE
MEDIA EFFICIENTLY AND REDUCES
REDUNDANCY.
TRUE
FALS
E

WIRELESS AND WIRED ARE TWO TYPES OF
NETWORKING MEDIA.
TRUE
FALS
E

WHICH OF THE FOLLOWING IS NOT A WIRED
NETWORKING MEDIA?
Ethernet
Cables
Infrared
Technology
Coaxial Cables
Optical Fiber
Cables

WHICH OF THE FOLLOWING IS NOT A WIRELESS
NETWORKING MEDIA?
Ethernet
Cables
Infrared
Technology
Bluetooth
Wi-Fi

WHICH OF THE FOLLOWING IS USED WITHIN
THE RADIUS OF 5 METERS?
Optical Fiber
Cables
Infrared
Technology
Bluetooth
Wi-Fi

WHICH OF THE FOLLOWING IS USED WITHIN
THE RADIUS OF 240 METERS?
Coaxial Cables
Infrared
Technology
Bluetooth
Wi-Fi

LET’S LEARN
 Write advantages of Networking.
 Name the types of networking media.
 Explain any 3 wired networking media. With it’s advantages and
disadvantages.
 Explain any 3 wireless networking media. With it’s advantages and
disadvantages.
 Identify the following:-
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THANK YOU
Stay tuned for more.
Watch, Like and Subscribe my videos on my
YouTube Channel
Read Blog for more Articles.
Reach me at meetuchoudhary@gmail.com
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Networking concepts part 2

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