- In today’s tech world, new terms keep popping up every now and then. But sometimes, these tech jargons can be so confusing that you feel like saying, "Arey bhai, kya bol rahe ho?", I tried to explain every terms in simple terms and language, So, let’s take a fun ride through some common tech terms
TCP (Transmission Control Protocol)
TCP stands for Transmission Control Protocol. It is a set of rules that defines how data is transmitted and received between devices over a network. Think of it as the postal service for the internet, ensuring that your "letters" (data) reach the right destination in the correct order.
Three-Way Handshake
TCP establishes a connection between devices using a process called the three-way handshake:
SYN (Synchronize): Your device sends a SYN packet to the server to initiate a connection. Think of it as knocking on someone’s door.
SYN-ACK (Synchronize-Acknowledgment): The server replies with a SYN-ACK packet, saying, "I’m ready to connect."
ACK (Acknowledgment): Your device sends an ACK back to the server, confirming the connection.
Analogy: Imagine you’re calling someone. First, you say, "Hello, can we talk?" (SYN). The other person replies, "Sure, I’m listening." (SYN-ACK). Then, you respond with, "Great, let’s talk!" (ACK).
Once the connection is established, TCP ensures data is sent reliably, in the right order, and retransmits any lost packets.
Example
When you stream a video on YouTube, TCP divides the video into small packets. Each packet is numbered, ensuring your browser can reassemble them in the correct order, providing a seamless viewing experience.
FTP (File Transfer Protocol)
FTP is used to transfer files between a client and a server. It follows a client-server model where the client requests files, and the server provides them.
Example
Imagine you’re managing a website and need to upload files to the server. You use an FTP client like FileZilla to:
Connect to the server.
Upload files like images and HTML.
Download backups when needed.
Analogy: FTP is like using a courier service to send or receive documents. You pack the files (documents), provide the delivery address (server details), and the courier ensures safe delivery.
IP (Internet Protocol)
IP is a set of rules for sending and receiving data over the internet. It handles addressing, routing, and delivering data packets.
How It Works
Addressing: Every device has a unique IP address, like a postal address, to ensure data reaches the right destination.
Routing: Routers act like postmen, directing packets to their destinations based on IP addresses.
Reassembly: At the destination, packets are reassembled into the original data.
Analogy: IP addresses are like ghar ke addresses. Just like a postman ensures your letter reaches the right home, routers ensure data packets reach the correct device.
URL (Uniform Resource Locator)
A URL is the web address you type into your browser to access resources online. It includes:
Protocol: e.g., HTTPS
Domain name: e.g., google.com
Path: e.g., /search
Example
https://www.example.com/index.html leads to an HTML file on the "example" website.
Analogy: A URL is like a detailed postal address. It tells the browser where to fetch data, similar to how an address guides a letter to its destination.
DNS (Domain Name System)
DNS acts as the internet's phonebook. It translates user-friendly domain names like google.com into machine-readable IP addresses like 172.217.4.206.
Example
When you type "google.com," DNS finds its corresponding IP address so your browser can connect to Google’s servers.
Analogy: DNS ko ek contacts list samajh lijiye. Jaise aap phone pe kisi ka naam dhoondh ke unka number dial karte hain, DNS domain name ke peeche chhupa IP address dhoondhta hai.
Header
Headers contain metadata or additional information in a request or response. They help servers and browsers understand and process data.
Example
Request Header: Contains browser type, language, and cookies.
Response Header: Includes server type, content type, and status code (e.g., 200 OK).
Analogy: Headers are like the envelope of a letter. They provide information about the sender, recipient, and priority, while the letter inside is the main content.
Payload
Payload refers to the actual content being transferred in a request or response, such as the data in a form submission or the HTML of a webpage.
Example
When submitting a form, the filled-in data (like name and email) is the payload sent to the server.
Analogy: Payload is like the dish you’ve ordered at a restaurant. While the menu (header) provides context, the actual food (payload) is what you’re there for.
Cache
A cache temporarily stores frequently accessed data to improve speed and efficiency.
Example
When you revisit a website, your browser loads images and CSS from the cache, reducing load time.
Analogy: Cache ko ek biscuit jar ki tarah dekhiye. Jab bhook lagti hai, aap jar se biscuit nikalte hain, bina shop jaaye. Yeh jar frequently needed data ko store karta hai taaki jaldi access ho sake.
Cookie
Cookies are small data pieces stored on your device by websites to remember your preferences, login details, or shopping cart contents.
Analogy: Cookies ko ek chitthi samajhiye jo aapke browser aur website ke beech baat-cheet yaad rakhti hai. Jaise ek diary mein likha hua note aapko yaad dilata hai ki kal kya hua tha, waise hi cookies websites ko yaad dilaati hain ki aap kaun hain aur kya chahte hain.
Conclusion
These are just a few tech jargons; there are hundreds more in the tech world. But now you can enjoy these terms without feeling confused. Next time someone says "DNS," "cache," or "URL" etc, confidently respond, "Haan bhai, samajh gaya!"
If there are any other jargons that confuse you, drop them in the comments section. We’ll decode them together.
#Ayush_Srivastava #chaichode