What are the types of Cable?

What are the types of cable

                        The types of cable

 A. Twisted Pair.

a cable consisting of two wires twisted around each other, used especially for telephone or computer applications.

a. STP ( Shielded Twisted Pair ) -  Shielded twisted pair (STP) cable was originally designed by IBM for token ring networks that include two individual wires covered with a foil shielding, which prevents electromagnetic interference, thereby transporting data faster.

b. UTP ( Unshielded Twisted Pair ) Unshielded twisted pair (UTP) cables are widely used in the computer and telecommunications industry as Ethernet cables and telephone wires. In an UTP cable, conductors which form a single circuit are twisted around each other in order to cancel out electromagnetic interference (EMI) from external sources.

B. Coaxial

 Coaxial cable is a type of copper cable specially built with a metal shield and other components engineered to block signal interference. It is primarily used by cable TV companies to connect their satellite antenna facilities to customer homes and businesses. It is also sometimes used by telephone companies to connect central offices to telephone poles near customers. Some homes and offices use coaxial cable, too, but its widespread use as an Ethernet connectivity medium in enterprises and data centers has been supplanted by the deployment of twisted pair cabling.

C. Fiber Optic

 Fiber optic cable is a high-speed data transmission medium. It contains tiny glass or plastic filaments that carry light beams. Digital data is transmitted through the cable via rapid pulses of light.

 Straight Through Cable

A straight through cable is a type of twisted pair cable that is used in local area networks to connect a computer to a network hub such as a router. This type of cable is also sometimes called a patch cable and is an alternative to wireless connections where one or more computers access a router through a wireless signal. On a straight through cable, the wired pins match. Straight through cable use one wiring standard: both ends use T568A wiring standard or both ends use T568B wiring standard. The following figure shows a straight through cable of which both ends are wired as the T568B standard.

Crossover Cable

An  Ethernet crossover cable is a type of Ethernet cable used to connect computing devices together directly. Unlike straight through cable, crossover cables use two different wiring standards: one end uses the T568A wiring standard, and the other end uses the T568B wiring standard. The internal wiring of Ethernet crossover cables reverses the transmit and receive signals. It is most often used to connect two devices of the same type: e.g. two computers (via network interface controller) or two switches to each other.

 
source: https://fcit.usf.edu/network/chap4/chap4.htm

What are the types of computer network?

What are the types of computer network?

What is a computer network?
A computer network, or data network, is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections between nodes.



LAN (local area network)
A local area network is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.

MAN (metropolitan area network)

A metropolitan area network is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network but smaller than the area covered by a wide area network.

WAN (wide area network)

A wide area network is a telecommunications network or computer network that extends over a large geographical distance/place. Wide area networks are often established with leased telecommunication circuits.

PAN (personal are network)

A personal area network is a computer network for interconnecting devices centered on an individual person's workspace. A PAN provides data transmission amongst devices such as computers, smartphones, tablets and personal digital assistants. 

source: https://www.belden.com/blog/digital-building/11-types-of-networks-explained-vpn-lan-more

What are the types of network topology?

What are the types of network topology?

Network topology is the arrangement of the elements of a communication network. Network topology is the topological structure of a network and may be depicted physically or logically.






Linear Bus Toplogy

Linear bus topology is a type of network topology in which each device is connected one after the other in a sequential chain (shown right). In this case, the bus is thenetwork connection between the devices, and if any link in the network chain is severed, all network transmission is halted. 















Star Topology 

Star topology is a network topology where each individual piece of a network is attached to a central node (often called a hub or switch). The attachment of these network pieces to the central component is visually represented in a form similar to a star.

Ring Topology

A ring network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node - a ring.











Hybrid Topology


Hybrid topology is an integration of two or more different topologies to form a resultant topologywhich has many advantages (as well as disadvantages) of all the constituent basic topologiesrather than having characteristics of one specifictopology.









Mesh Topology

A mesh network is a local network topology in which the infrastructure nodes connect directly, dynamically and non-hierarchically to as many other nodes as possible and cooperate with one another to efficiently route data from/to clients




Source:https://www.studytonight.com/computer-networks/network-topology-types