NETWORK

Computer networks

Physical components

Router

Is a connecting device

Repeater

Recives a signal and regenerates it before re - transmitting

HUB

A multiport repeate having a several input/output

Switch

Recives data from a port, and the forwards the data to the particular destination

Software

What type of software we need tu use network?

Networking Software

Definition

Union of two or more computers

Create the network, hardware and software

Types of networks

Size

PAN ( Personal Area Network )

Individual person

LAN ( Local Area Network )

Small networks

MAN ( Metropolitan Area Network )

It extends within the metropolitan area

WAN ( Wide Area Network )

Serve multiple users, they even cross countries

VPN ( Virtual Private Network )

Where users take advantages of resources of the internet

Topology

Used to create small local area networks

Technology

Point-to-point

In which there are a multitude of connections between
pairs of teams.

Diffusion

Transmit data through a single
channel shared by all devices.

Multipoint

With a line of communication shared by all teams,

Connection

Guided media Wired

Twisted pair cable

Cross-twisted pair cable is used to
connect two computers that are the same

Coaxial cable

Optic cable is a very thin thread of transparent material, glass or plastic materials, through which pulses of light are sent that represent the data to be transmitted

Fiber optics

Usually used mainly on
television

Unguided Media

Radio network

Infrared network

Microware network

Ownership

Private Network

Privately owned by a single or group of people for their personal use.

Public Network

Publicly owned by the
government or NGOs.

Funtionality

Client-server network

A network in which a client runs the program and access data that are stored on the server.

Pear-to-pear network

The flow of information from one peer toanother without any central server.

Topic principal