What are the types of computer cable

A.Twisted Pair

     a. STP
     b. UTP

a. STP

  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. 

STP is similar to unshielded twisted pair (UTP); however, it contains an extra foil wrapping or copper braid jacket to help shield the cable signals from interference. STP cables are costlier when compared to UTP, but has the advantage of being capable of supporting higher transmission rates across longer distances. 

b. UTP

  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. Unshielded means no additional shielding like meshes or aluminum foil, which add bulk, are used.UTP cables are often groups of twisted pairs grouped together with color coded insulators, the number of which depends on the purpose.

                   Difference between Straight-through cable and Cross-over cable

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. 

 Crossover Cable

    A crossover cable is a type of cable installation that is used for the interconnection of two similar devices. It is enabled by reversing the transmission and receiving pins at both ends, so that output from one computer becomes input to the other, and vice versa. 

https://www.techopedia.com/definition/14153/shielded-twisted-pair-stp

https://www.techopedia.com/definition/13454/unshielded-twisted-pair-cable-utp

https://www.techopedia.com/definition/13358/straight-through-cable

https://www.techopedia.com/definition/2933/crossover-cable

What are the Types of NETWORK TOPOLOGY

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.



A star topology is a topology for a Local Area Network (LAN) in which all nodes are individually connected to a central connection point, like a hub or a switch. A star takes more cable than e.g. a bus, but the benefit is that if a cable fails, only one node will be brought down.

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. Data travels from node to node, with each node along the way handling every packet.

A hybrid topology is a type of network topologythat uses two or more differing network topologies. These topologies include a mix of bus topology, mesh topology, ring topology, star topology, and tree topology.













http://www.telecomabc.com/s/star.html
https://www.computerhope.com/jargon/l/linear-bus-topology.html
https://en.wikipedia.org/wiki/Ring_network
https://www.computerhope.com/jargon/h/hybrtopo.htm

What are the types of computer network?

Personal Area Network

1.Personal Area Network (PAN) -  is the interconnection of information technology devices within the range of an individual person, typically within a range of 10 meters. For example, a person traveling with a laptop, a personal digital assistant (PDA).

Local Area Network

2.local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves.

Metropolitan Area Network

3.Metropolitan Area Network (MAN)-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 (LAN) but smaller than the area covered by a wide area network (WAN).

Wide Area Network (WAN)- 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.

Wide Area Network






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