Connectivity

Connectivity

1. Undersea Internet Cables

   • in the ocean
   • can be damaged
     • plastic tube covered in gel
     • usually near the coast
   • glass cables
   • made of fibre optics
   • very hard to plant in the ocean
     • can be attacked by wildlife
       • includes lots of repeaters

2. Connection speed

   • amThe speed in which the data is transferred
     • connection speed
       • broadband
   • amount of high speed connection to the internet

3. Bandwith

   • amount of data that can be carried at time
     • good analogy is the amount of water that can be carried down a single pipe at one time
       • amount of water that is carried by a pipe at a time
   • depends on the size of the pipe
   • transmitted in fixed amount of time
     • mbps
       • measured in bits per second
     • there are the most connections in china and america

4. Calculating download speed

   • 8 bits in a bite
     • 1MB *8= 8mb
       • 8MB/8Mbs= 1 second
   • ethernet cable
     • the ethernet networking standard uses twisted pair copper cabling or fibre optics
       • advantages of fibre optics
         • have a much greater bandwith than metal cables
       • Advantages of copper cables
         • Can handle a wider load of electrical power
       • Disadvantages of fibre otpics
         • Cannot work with mobile communication and cannot come of the ground. It is also quite fragile
       • Disadvantages of using copper cables
         • it has a shorter life expectancy compared to fibre optics due to errosion (oxidation)
       • Uploading is the process of putting web pages, images and files onto a web server. Downloading is the process of getting web pages, images and files from a web server. To make a file visible to everyone on the internet, you will need to upload it.