Computer networks

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The Anatomy of a Computer Hardware Components of the Computer

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CONTENUTI MULTIMEDIALI

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Pollution

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My Family Tree

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Computer networks

UNIQUE IDENTIFIERS

PACKAGE TOUR

ETHERNET

WIRELESS

TCP/IP ADRESS

DNS

DNS servers

PORT

MAC ADRESS

IP ADRESS

HOST NAME

USE

TO COMMUNICATE

send data

send messages

TO SHARE RESOURCES

applications

data

peripherals

DATA TRANSMISION

transmision of 2+ simultanoeus stations

DATA COLLISION

transmita a single station in an orderly manner

transmited in packets

TYPES

TOPOLOGY

MESH NETWORK TOPOLOGY

TREE TOPOLOGY

RING NETWORK TOPOLOGY

STAR NETWORK TOPOLOGY

COMMON BUS TOPOLOGY

OWNERSHIP

PUBLIC NETWORK

MAN or WAN

owned by government or NGOS

PRIVATE NETWORK

privately owned

TECHNOLOGY

MULTIPOINT

DIFFUSION

POINT TO POINT

CONNECTIONS

UNGUIDED MEDIA

GUIDED MEDIA WIRED

COAXIAL CABLE

CROSS TWISTED WIRE

size

VPN

WAN

MAN

LAN

PAN

FUNCTIONALITY

PEER TO PEER

CLIENT-SERVER

DEFINITION

Union of two or more computers so they can share resources.To create the network, hardware and software are needed.

EXAMPLES OF SOFTWARE

services

protocols

EXAMPLES OF HARDWARE:

cables

cards

EXAMPLES OF RESOURCES:,

disks

printers

programs

directories

files

HARDWARE

switch

repeater

hub (multiport repeater)

router

network card

BNC connector

RJ45 connector

motherboard

ELEMENTS

Network Operating System

Linux

Unix

Novell Netware

Microsoft Windows

A connection medium like a wire or a cable

wireless also possible

Networking Interface Card

2+ computers