[highlight]Packet switching is a mode of data transmission in which a message is broken into a number of parts which are sent independently, over whatever
route is optimum for each packet, and reassembled at the destination.[/highlight]
[h3]Packets[/h3]
[ul]
[li]Data being transmitted over a network is broken down into packets[/li]
[li]Each packet is given a header which contains the IP address of the network and device that it is being sent to.[/li]
[li]They also contain a sequence number, so they can be restructured on the other end[/li]
[li]They contain [/li]
[/ul]
