How does the internet work? (TCP - Transmission Control Protocol (TCP is a…
How does the internet work?
- Domain Name Server
A DNS is like a phone book which when given the URL it will give the computer the IP Address for the website you are looking for.
- Transmission Control Protocol
TCP is a set of "rules" that compurters use to share data
When a website is requested the TCP controls breaking the web page down into smaller bits of data which are then able to be passed through the internet the TCP also numbers each package to ensure that they assemble in order.
The smaller packs of data are sent to your IP Address and your computer will reassemble the packs of data in the correct number order to hen give you the web page.
- Internet Service Protocol
The people who provide your internet connection
When you are connected to your internet all your requests for the websites you want to use have to go through your server first.
- Internet Protocol Address
An IP Address is a set of rules that computers uses to communicate over the internet.
Every computer on the internet has a unique Ip address made of four sets of numbers
- Uniform Resource Locator
The URL is the address you type in to get to a website - basically a easier way that people can use instead of typing an IP Address - they take you to the same place.
This means you don't have to learn the IP Address and its easier to remember.
Usually the URL will be like: "www.YourWebsiteOfChoice.co.uk" (or it can be ".com" etc.)
- Hyper Text Transfer Protocol
This controls what web servers should do and how the browser should behave.
So when you request a web page HTTP tells the web server at the BBC (just as an example) how to react. HTTP then uses TCP and the IP Address to make it happen.
What is a router?
A smart device that directs or routes information around the internet. When a data packet arrives the router reads the IP address information and sends the packet along the best route to its destination