NETWORKS

Elements

Two or more Server or Client workstation

Network Interface Cards (NIC)

A connection medium (wire/cable/sometimes wireless)

Network Operating System Sorftware (NOS)

Functions

They comunicate

By sending data

By sending messages

They share resources

Applications

Data

Peripherals

Definition

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

Network hardware

RJ45 conenctor in motherboard

RJ45 conenctor in motherboard

RJ45 connector and BNC connector  in network card

RJ45 connector and BNC connector in network card

Router

Router

Repeater

Repeater

Hub

Hub

Switch

Switch

Unique Identifiers

Hostname

IP adress

MAC adress

Port

Subtopic

DNS(domain name system)

.com

.edu

.uk

.es

.net

Subtopic

Types of networks

Depending on size

PAN

PAN

MAN

MAN

LAN

LAN

WAN

WAN

VPN

VPN

a

Topology

Common bus topology

Common bus topology

Star network topology

Star network topology

Ring network topology

Ring network topology

Tree topology

Tree topology

Technology

Point to point

Diffusion

Multipoint

Media connection

Unguided media

Twisted pair cable

Coaxal cable

Fiber optics

Guided media wired

Radio network

Infrared network

Microware net

Ownership

Private Network

Public network

Functionality

Peer to peer network

Peer to peer network

Client server network

Client server network

Data transmission

Transmitted in packets

It trasmits a single stations in a orderly manner

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