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Showing posts from June, 2025

Latency vs Mbps: The Netflix Thread Analogy

๐ŸŽฌ Latency vs Mbps: The Netflix Thread Analogy Ever wondered what happens behind the scenes when you tap play? Imagine this: You’re tired after a long day. You grab your phone, open Netflix, and tap on your favourite show. But have you ever wondered what’s happening behind the scenes in those few seconds before your video starts? Let’s simplify it with a fun analogy! ๐ŸŒŸ ๐Ÿงต The Thread Analogy ✅ Step 1: Throwing the Thread (Latency) Think of your internet connection as throwing a thread from your phone to the Netflix server. Latency is the time taken for that thread to reach Netflix and come back to you. ๐Ÿ“ฑ ๐Ÿ–ฅ️ ...

Why Does My Phone Ring Instantly When Someone Calls? (A Story of Modem, Kernel & Telephony Magic)

๐Ÿ“ฑ How Your Phone Rings Instantly The Complete Journey from Call to Ring 1 ๐Ÿค™ Friend Presses Call Your friend dials your number and hits the call button. The mobile network sends out a paging signal targeted specifically to your phone number. 2 ๐Ÿ“ก Modem Catches Signal Even while your phone appears idle, the modem hardware is constantly listening to signals from nearby mobile towers. It picks up the paging signal like a walkie-talkie. 3 ๐Ÿ“ž Telephony Services Interpret The telephony service (built into your OS) reads the incoming signal and prepares your phone to handle the call. It's like a translator between the modem and your phone's software. ...