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Articles tagged with #mern
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...
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...
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...
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...
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 ...
