Presentación

NICOL HERNANDEZ GIRALDO

FRAY JOSE JOAQUIN ESCOBAR

GRADO ONCE(11)

TOROVALLE DEL CAUCA

¿WHICH IT IS A COMPUTER NETWORK?

A computer network also called computer network data communication network is

a set of computer equipment the software connected togother by means of physical devices they are sending and receiving

electrical impulse, electromagetic waves or other means of transport datos con

the purpose of sharing information, resources and offer services

TYPE OF SERVERS:

Dedicated server:who devotes all its resources to respod to

requests

Sharen server:On who does not devote all its resources to serve

request from clients but is also used to work locally

Work stations:A work statios is a high performance

minietworkcomputer intended for technical or cientific work in a computer

network is a computer that provides users access to servers and network

peripherals

Network card:

Is that physically connects the computer to the network are cards

that are needled to your computer as a video card or it were any other card

Repeats

It is an electronic device that receives a weak or low level signal and retransmits at a power level of

higher so that they can cover longer distances

Bridges:

Teams are linkig two network acting on the low-level protocols are used to

segment large network into smaller network

Switch:

Special purpose devices designed to solve network performance

Router:

He meas router in a work of computer is a device

that selects paths or routers

Firewalls:

Security elemets that filters network traffic as he arrives

CABLING:

-Coaxial cable:It was created in the decade of the

30 and is used to carry high frecuency electrical signals heving two concentric drivers, central one

called live, resposible for keeping the information

-Optical fiber:

Transmission medium usually employed in data network; a very

thin thread of glass or plastic transparent material

-Braided:

Consists of two wires that are twisted insulated cooper

helically, is a circuit that can transmit data

-Utp:

For unshielded twisted

-Stp:

Shielded twisted pair

-Protocol:

Set of rules governing the communication between the various components of a computer network

-Interfaces:

Elements of commuication that facilitates data exchange, such as the keyboard