There are 3.2 billion people who use the internet, share data. As you are reading this article, this article is stored thousands of miles away from you. Then how are you reading this? How can we be enabled to access this article which is even far from our home? and the last question is How this internet even works?
Google has one of its data centers in South Carolina. Think that the article you are reading now is stored in that data center situated in South Carolina. To read this by your digital device (mobile, laptop, desktop) there a communication must be established between the data center servers and your device.
That can be placed in two ways:
1. by satellite
2. by optical fiber cable
By satellite: There is antenna in the satellite which will fetch your requested data from the google data server and send it to your device through the mobile network tower. But the satellite is roughly 22000 miles from the earth equator. As a result, there will be a great delay in data communication. The internet speed will be much lower and will take a lot of time to load one webpage. Only 2-3% of internet communication happened via satellite.
By optical fiber: This is a cable where light travels by reflection. As light is the fastest object in the universe, data travels on that speed. When we request any data from the server, the server sends this data via optical fiber cable by which our laptop, smartphones and other digital device are connected indirectly.
The optical fiber is connected to the main station. the station are situated in every country. The ISP(internet service provider) fetch that internet to us via an internet cable. We also have a small station which might be our router. From this router, we use internet and access the data depositories of the world.
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