Many Developers writes codes but don’t really understand how the internet works A Clarity Guide

𝗛𝗲𝗿𝗲 𝗮𝗿𝗲 𝟰 𝗯𝗮𝘀𝗶𝗰 𝘁𝗵𝗶𝗻𝗴𝘀 𝘆𝗼𝘂 𝗻𝗲𝗲𝗱 𝘁𝗼 𝗸𝗻𝗼𝘄 𝗮𝗯𝗼𝘂𝘁 𝘁𝗵𝗲 𝗶𝗻𝘁𝗲𝗿𝗻𝗲𝘁 👇

What is the Internet ?

The Internet is basically a global network of computers which are connected to each other and communicate through certain standardized protocols.

See it this way, visualize this

Your Phone or Laptop is connected to a WiFi which is connected to an Internet Service Provider (ISP) which grants you access to the global network of internet connected networks known as the Internet.

📱or 💻 => Wi-Fi 📶 => ISP( Internet Service Provider) => Global interconnected network of computers

How is information transferred over the internet ?

Information are transferred in Packets of Bits( Binary). Let’s say you are downloading an audio file of 3MB I.e 24,000,000 bits

Reference: 8 bits = 1 Byte, 1024byte = 1KB ,1024KB = 1MB

The Information or Data broken down into bits are transferred through medium such as Ethernet cables, fiber optic cable and Wireless Signal ( Radio Waves )

What are the Protocols that guide information transferred on the internet?

Protocols are set of rules that govern communication between this global interconnected networks of computers called the Internet. This Protocol is known as Internet Protocol (IP)
Each device on the internet has it own address, The address is known as IP Address (174.129.14.120 for example).

For instance, let’s say you want to visit www.hashnode.com, your computer needs the IP address attached to this domain, so it asks the DNS server which delivers the IP address attached to that domain to give you the requested page. This System is know as Domain Name System (DNS).

Note: The standard protocol that guides the transfer of webpages is know as HTTP

How is Information secured on the internet?

The Internet is a public open network where information is distributed, so does it make sure private data or information is secured on the internet?
Information are secured through process know as Encryption and Decryption( I’ll discuss how this works really in another article)
However let’s talk about Security Protocol such as SSL(Secure socket layer ) and TSL ( Transport layer security). These security protocols protects us while we are browsing through the web
For instance when you see “https://…….” or a lock on your browser address bar, it means you are browsing securely

Note: HTTPS means Hypertext Transfer Protocol Secure

This would be the end of this article, I hope you were able to learn a thing or two from this article. I believe this information would guide you during interviews or help you when building amazing software products or perhaps even for knowledge sake.

Do well to like and repost if you found this information helpful.

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