Transcript What is a communication device?

Communication
Devices..
Name: Dana AlMadi
ID: 201200064
Instructor: Wesal Ali
Outline:
•What is a communication device?
•Examples of communication devices
•Communications over the telephone network.
•Some of the widely used network communication.
What is a communication device?
It is any type of hardware capable of transmitting data,
instructions and information between a sending device and a
receiving device.
Examples of communication devices:
1- Dial – Up Modems :
It is a communication device that can convert digital
signals to analog signals and analog signals to digital signals.
2- Digital Modems: ISDN, DSL and Cable
A communication device that sends and receives
data and information to and from a digital line.
DSL modem
Cable modem
3- Wireless Modems:
Wireless modems, which have an external or built
in antenna, are available as USB flash drive, Express Card
modules, PC Card and memory cards.
4- Network Cards
Sometimes called a network interface card , is a
communication device that enable a computer or device that does
not have built- in networking capability to access a network.
5- Wireless Access Points:
A central communication device that allows
computers and devices to transfer data wirelessly among
themselves or to a wired network.
6- Routers:
It is a communication device that connect multiple
computers or other routers together and transmits data to
its correct destination on a network.
Communications over the telephone network:
Dial-Up
Lines
DSL
Dedicated
Lines
FTTP
ISDN
Lines
ATM
Dial Up Lines:
- Temporary connection
- Not permanent
- cost = regular
telephone call
Dedicates Lines:
-always on connection
-Constant connection
-Can be either analog or digital
ISDN Lines :
- For small business
- Faster transfer rates
- With it, the telephone line carries
three or more signals
 “multiplexing”
DSL:
- Fast speeds on existing standard.
-
provide both voice and data comm.
FTTP:
- Uses fiber-optic cable to provide high-
speed access.
- With FTTP service:
 An optical terminal at your location
receives the signals..
ATM:
- Carries voice, data, video, and
multimedia .
- Used by telephone networks, the
internet and other.
-
the internet standard for data
transmission.
Some of the widely used network communication:
1- Ethernet
2- Bluetooth
1- Ethernet ..
Ethernet is a protocol that
controls the way data is
transmitted over a local area
network (LAN).
It uses wires
(meaning it is not a wireless
technology).
2- Bluetooth :
is a short-range wireless radio
technology that allows electronic
devices to connect to one another.
Generally, Bluetooth has a range
of up to 30 ft. or greater,
depending on the Bluetooth core
specification version. Newer
devices, using newer versions of
Bluetooth, have ranges over 100
ft.
Thank you for listening.