Internet Addresses Activity

A URL is an address.
An IP address is a unique address each seperate machine has. Each one is expressed as 'octets' in a 'dotted decimal number'. For example: 216.27.61.137  The four numbers in an IP address are called octets because they have a value between 0 and 255. The browser communicates with a name server to translate the URL into a IP address which it uses to connect to the server machine.
Upload speed is how quickly your computer sends stuff to the internt and download speed is how quickly the internet sends stuff to your computer.
The units used to measure download and upload speed id bits and bytes.
Different locations offer different speeds because of how many computers are using the same

Data Compression for the Web

1) Name two programmes used for file compression
WinZip and Stuffit.

2)What name is given to the file compression method that looks for redundant patterns?
Lossless and Lossy Compression
Why can't music be compressed efficiently with this type of compression technique?
music has lots of unique information so it can't be compressed much with this system because it doesn't have many repeating patterns.

3) What method of compression is most suited to graphics and music files?
The Lossless is better because it lets you recreate the original file exactly. 

4) Name compressed file formats for the following media:

music- mp3 (it's compressed to roughly one-tenth the original size while maintaining a good quality).

still graphics- PNG uses ZIP compression, JPEG always uses lossy compression, GIF uses lossless.

video- WMV allows large video files to be compressed while retaining the rich quality of the video.

Tips

to make it look professional make a table and centre it but you can left justify the writing or picture inside. this makes it neater and doesn't make it go in the centre which looks bad. to hide the table borders right click in the table go to table properties and make the border size 0.

If you want a new row in the menu just add a another line in the URL part of the code. you should get the menu working on one page then copy it onto the rest of the pages because if you want to make a change you have to go to every page and change the menu code.

make sure you save any pictures or music to the frontpage image and audio folder.

to put in the background music right click on the background and go to page properties to select which audio you wold like to play.