how does images get transfer on the net?

Answer 1

Images can be saved in a number of ways, but on the Internet you have to use raster images. In a raster image each image is a grid of a certain size, normally referred to a the number of pixels high by the number of pixels wide. The location of each pixel and what colour it should be is then written in code. For example, the top left pixel is white, the next one on the left if slightly off white.

Each pixel in the image is coded this way and that is what an image file will contain. Just a long list of pixel colour and location information.

When you access a web site, the browser (for example Internet Explorer) requests the files at the website address you have specified and the web server sends the files relating to that site to your browser, which receives this long information of code and then colours the correct pixel in each location (relative to the position the picture is on the website page).

The next time you have a look at the television, look very closely at the screen (so your nose almost touches it), you will see that the image is made up of lots of dots, but as you move away the dots merge together to produce a picture. Images on the net behave in the same way, they consist of hundreds if not thousands of dots called pixels, but when you view them they all merge into the single image you are seeing.

Answer 2

All data sent across the internet is sent using packets. A packet consists of a header and the data along with a marker that designates the end of the packet.

http://en.wikipedia.org/wiki/Packets

Answer 3

Images and text are all whole bunch of numbers that get divided into small packets and take different routes to travel to your computer. Some packets travel great distance to reach to your computer. Then when your modem receive them, it will reassemble them in correct order and display on your monitor to view.