Wired and Wireless Networks unit 1.4

Wired and Wireless Networks unit 1.4

1. Routers

   • identifies all parts of the computer
   • manages lots of data

2. Switch

   • sends information to where it needs to go

3. Bandwidth

   • amount of data you can send at once
   • speed in which you can send data
   • greater bandwidth = more amounts of data able to send

4. HUB

   • Is similar to a switch, but a switch can work all four parts at the same time

5. PACKETS

   • we use packets to break files up
   • Each packet contains the address of the sender and the address of the reciever (IP ADDRESS)
   • Packets will also contain a sequence number
   • Packets will have a time to live (how many hops around the network they can take before they disappear
   • It chooses the cheapest path (time, politics, relationship)

6. The internet is the hardware which is physically touchable: switch,router, WAP

   • The World Wide Web is the software which stores things like files.