Feb 1 · 3 min read · What is a server and why we talk to it First basic thing.A server is just another computer on internet.This computer stores websites, data, APIs, images, everything. When we open a website in browser, we are actually talking to a server.We send reque...
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Feb 1 · 3 min read · What is DNS DNS means Domain Name System.DNS is like phonebook of internet. Humans remember names like: google.com facebook.com But computers understand only numbers like: 142.250.182.14 So DNS job is simple:convert website name into IP address...
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Feb 1 · 3 min read · Why writing HTML feels slow at start When I started HTML, typing everything felt too much.So many angle brackets, closing tags, nesting Example: <div> <p>Hello</p> </div> For small thing, lot of typing.That’s when I learned about Emmet. What is Em...
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Feb 1 · 3 min read · What is HTML and why we use it When I started web dev, first word I hear is HTML.HTML means HyperText Markup Language. HTML is not programming language.It is used to structure a webpage. Think like this: HTML = skeleton of body CSS = clothes JavaS...
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Feb 1 · 3 min read · What is a Browser (More Than “It Opens Websites”) A browser is not just a website opener. Browser is a software that: takes code (HTML, CSS, JS) understands it converts it into pixels on screen Examples: Chrome Firefox Edge Safari So brows...
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Feb 1 · 3 min read · Big picture: how internet comes to our home or office Before learning devices, see full flow. Internet ↓ Modem ↓ Router ↓ Switch ↓ Laptop / Mobile / Server Each device has its own role.Let’s understand one by one. What is a Modem? Mo...
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Feb 1 · 3 min read · How does a browser know where a website lives? When I type a website like example.com,my browser somehow finds the correct server. But computer does not understand names.Computer understands numbers (IP addresses). So question is:How name becomes num...
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Feb 1 · 3 min read · Internet Needs Rules to Send Data Internet is just computers talking to each other. To send data properly, they need rules.These rules are called protocols. Two important protocols are: TCP UDP What is TCP? TCP (Transmission Control Protocol) is ...
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Feb 1 · 3 min read · Why CSS selectors are needed When I write CSS, browser does not know where to apply style.CSS selectors are used to select HTML elements and style them. Without selectors: CSS is useless browser is confused So selector = who should get the style ...
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Feb 1 · 4 min read · What Happens If Data Is Sent Without Rules? Imagine you send messages to your friend: messages go randomly some messages are lost some come late some come in wrong order Your friend will be confused Same thing happens on internet if there are n...
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