NETWORKS

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ENVIRONMENTALPROBLEMS

由jose gutierrez

Pollution

由Chloe K

My Cultural Identity

由Ida Falecka

Qaiwan Group

由Hawkar Abdulla

NETWORKS

Data transmission

Transmission of two or more stations involves data colision and in both stations it must be repeated

It trasmits a single stations in a orderly manner

Transmitted in packets

Types of networks

Functionality

Client server network

Peer to peer network

Ownership

Public network

Private Network

Media connection

Guided media wired

Microware net

Infrared network

Radio network

Unguided media

Fiber optics

Coaxal cable

Twisted pair cable

Technology

Multipoint

Diffusion

Point to point

Topology

Tree topology

Ring network topology

Star network topology

Common bus topology

Depending on size

VPN

WAN

LAN

MAN

PAN

Unique Identifiers

DNS(domain name system)

.net

.es

.uk

.edu

.com

Port

Subtopic

MAC adress

IP adress

Hostname

Network hardware

Switch

Hub

Repeater

Router

RJ45 connector and BNC connector in network card

RJ45 conenctor in motherboard

Definition

The union of two or more computers in order to share information.

Functions

They share resources

Peripherals

Data

Applications

They comunicate

By sending messages

By sending data

Elements

Network Operating System Sorftware (NOS)

A connection medium (wire/cable/sometimes wireless)

Network Interface Cards (NIC)

Two or more Server or Client workstation