TRANSMISSION MEDIA
The materials or substancens capable of carrying one or more signals.
physical:
Send signals through cable,wire or tangible matrrials
a)Twisted-pair: the cable consisting of pairs of copper wire that are twisted together.
b)Coaxial Cable: Consists a single copper wire surrounded by at least threee layers
c) Fiber Optic: Consists of dozens or hundreds of thin strands of glass or plastic over that use light to transmits,
WIRELESS
Send signals through the air or space
a) Infrared:Send Signals using infrared light waves from one device to another
b)Microwaves: Radio waves that provide a high-speed signal transmission using electromagnetic radio wave.
c)Cellular Radio: Form of a broad cast radio that is in wide use for mobile communication
d) Broadcast radio: Distributes radio signal through the air over long distance (cities)and short distance(home)
e)Communication Satellite: An earth-orbiting device that relays communicatons signal over long distances.
f)Bluetooth: A networking standard of for every short-rangewireless interconnect..
The materials or substancens capable of carrying one or more signals.
physical:
Send signals through cable,wire or tangible matrrials
a)Twisted-pair: the cable consisting of pairs of copper wire that are twisted together.
b)Coaxial Cable: Consists a single copper wire surrounded by at least threee layers
c) Fiber Optic: Consists of dozens or hundreds of thin strands of glass or plastic over that use light to transmits,
WIRELESS
Send signals through the air or space
a) Infrared:Send Signals using infrared light waves from one device to another
b)Microwaves: Radio waves that provide a high-speed signal transmission using electromagnetic radio wave.
c)Cellular Radio: Form of a broad cast radio that is in wide use for mobile communication
d) Broadcast radio: Distributes radio signal through the air over long distance (cities)and short distance(home)
e)Communication Satellite: An earth-orbiting device that relays communicatons signal over long distances.
f)Bluetooth: A networking standard of for every short-rangewireless interconnect..
What is network?
Network is collection of computers and mobile devices connected together via communication devices
(hardware ,software,data,&information)
Network is collection of computers and mobile devices connected together via communication devices
(hardware ,software,data,&information)
COMMUNICATION DEVICE
Hardware component that enables a computer to send(transmit)and receive data,
instruction, and information to and from one or more computers.
Examples:
1) HUB/SWITCH
A communication device that enables a computer or devide that does
not habe built-in netwroking.
instruction, and information to and from one or more computers.
Examples:
1) HUB/SWITCH
A communication device that enables a computer or devide that does
not habe built-in netwroking.
2) Modem
A
device that enables a computerto communicate over analog anetworking
media such as connecting the internet via telephone lines.
A device on a network that connects wireless devices to that network.3)Wireless Access Point
4) Router
A
device that connects multiple networks together, routes packets to
their nect location in order to efficiently reach their destination.
5)Hub
5)Hub
The device that provides a common central connection point for nodes on metwork.
6) Switch
6) Switch
A device used to connect multiple devices on a single(typically wired) network.
7)Network interface Cards(NIC)/Network Card
An device / expansion card that connect a computer to a network
8)Repeater
7)Network interface Cards(NIC)/Network Card
8)Repeater
A device that enhance the weaken signal and reputation
