Want to create interactive content? It’s easy in Genially!

Get started free

Computer Networks

clopezd05

Created on November 15, 2020

Start designing with a free template

Discover more than 1500 professional designs like these:

Explore all templates

Transcript

COMPUTER NETWORK

NETWORK CARD

DEFINITION

NETWORK HARDWARE

HARDWARE

MEANS OF TRANSMISSION

PAN

LAN

TYPES

NETWORK PROTOCOLS

MAN

WAN

RING

TECHONOLOGIES

WIRELESS NETWORKS

TOPOLOGIES

TREE

TOPOLOGIES

STAR

BUS

COMPUTER NETWORK

A computer network is a set of interconnected devices which allow sharing resources (printers, hard disks, etc.) and information (programs and data)

  • PAN (Personal Area Network): its extension covers few meters and allow the connection of devices to a computer (for example: Bluetooth, infrared, etc.)
  • LAN (Local Area Network): its extension covers, at most, a building (computing classrooms, offices)
  • MAN (Metropolitan Area Network): its extension covers some buildings of the same metropolitan area.
  • WAN (Wide Area Network): its extension covers some buildings of different cities, provinces, or even countries.

NETWORK TOPOLOGIES

NETWORK TOPOLOGIES

NETWORK HARDWARE

CONNECTION HARDWARE

MEANS OF TRANSMISSION

NETWORK CARD

TWISTED PAIR

HUB

OPTICAL FIBER

SWITCH

AIR

ROUTER

NETWORK CARD

  • For working in a network, we need to install a network card in all the devices. It is also called NIC (Network Interface Card).
  • Once installed and configured the network card, the devices will be able to communicate with other devices in the network through the corresponding mean of transmission.
  • For each network card installed in our computer, we will have a network connection.

HUB (concentrador)

In this example the Host-2 sends a ping to Host-3. All devices can hear the communication.

SWITCH (conmutador)

In this example the Host-2 sends a ping to Host-3. All know the address of the different hosts. Only them listen the conversation.

ROUTER (enrutador)

The router allows the communication among devices from different networks

MEANS OF TRANSMISSION

OPTICAL FIBER

AIR

TWISTED PAIR

HOW THE INFO IS SENT?

WIRELESS TECHNOLOGIES

INFRARED

BLUETOOTH

Wi-Fi

  • IEEE 802.11
  • Point to point
  • Infrared leds
  • Devices need to see each other
  • 1 TO50 Mbps
  • 10m-1Km
  • Not need see each other

WIRELESS TOPOLOGIES

AD-HOC

INFRASTRUCTURE MODE