Articals
The internet
When you use the internet to view a webpage there are three computers involved; these are your computer (the browser), THE Webpage owners computer (THESERVER) and a DNS, which finds the website for you.
When you make a web request you use a special luggage called HTTP, this is why most ~ web addresses start with HTTP://. YOUR computer asks the DNS for a particular websites IP address. This is a numeric address that all computers connected to the internet have. Once it has the Padres it can ask the server for the webpage, the server then sends a reply that contains the ~~ webpage. Your browser then interprets this and displays on the screen.
This happens every time you view a webpage, i WHETHER YOU type in the address i the address bar of your browser, follow a link Or even need an image to display the webpage correctly. Although you don’t know it every K time that you need a piece of data From the net your browser has to care full construct a message.
Domain servers are deigned so that they can interpret the request that is sent by the browser and find the file that you want to be sent. However the browser doesn’t have to send the File. It can be programmed TO REQUIRE A Password to send the file -e or the file can be a program that it ahs to execute and then Send a response rather than a file that it sends s straight to you
The DNS may not know the IP address of every single website, they have therefore created a system that by which a DNS can have a lists of all the other DNS servers that it can ask if it doesn’t know the IP address of a particular website, it then remembers the IP address for next time. The browser not only has to be able to send and receive http request But also be able to interpret the HTML tags so that it can correctly display the webpage. And make more requests if it needs to. ' SO next time you view a webgase think of all of the little messages that have gone back and forth in order to display it correcty for you.
PS if you think that i am a computer freak think of the fact that It wrote all of this on a typewriter
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