BASIC NETWORK

BASIC NETWORK
-Communication device
-Transmission media

Network definition

A computer network, also called a data network, is a series of points, or nodes, interconnected by communication paths for the purpose of transmitting, receiving and exchanging data, voice and video traffic

Computer network :
In information technology, a computer network also called data network, is a series of points, or nodes, interconnected by communication paths for the purpose of transmitting, receiving and exchanging data, voice and video traffic.

Communication Device:

A communication device is a hardware device capable of transmitting an analog or digital signal over the telephone, other communication wire, or wirelessly.

Terms	Definition
modem	A device that enables a computer to communicate over analog networking media such as connecting the Internet via telephone line
router	A device that connects multiple networks together; router packets to their next location in order to efficiently reach their destination
switch	A device used to connect multiple device on a single network
wireless access point	A device on a network that connects wireless devices to that network
hub	The device that provides a comon central connection point for nodes on network
network interface card (NIC)	An adapter card that connect a computer to a network
repeater	A device taht exchance the weaken signal and repeat it at its original strength

Transmission Media:

The type of physical system used to carry a communication signal from one system to another. Examples of transmission media include twisted-pair cable, coaxial cable, and fiber optic cable.

Physical transmission media

Terms	Definition
Twisted-pair cable	A networking cable consisting of wirw strands twisted in syes of two and bound into a cable
Coaxial cable	A networking cable consisting of centre wire inside a grounded, cylindrical shield, capable of sending data at high speeds
Fiber-Optic cable	A networking cable that utilizes hundreds of thin transparent fibers over which lasers transmits data as light

Wireless transmission media

Terms	Definition
Communication satellite	Is a space station that recives microwavesignals station that receives microwave signals from an earth-based station.
Broadcast radio	Wireless transmission medium that distributes radio signal through the air over long distances and short distances
Cellular radio	Is a form of broadcast radio that is in wide use for mobile communication
Infrared	Send signals using infrared light waves from one device to another
Microwaves	Radio waves that provide ahigh-speed signal transmission using electromangnetic radio wave
Bluetooth	A networking standard for every short-rangewireless connections; the devices are auromatically connected once they gat within the allowable range.