Nov 14, 2025 · 5 min read · When you speak into a microphone or play a song on your phone, you’re interacting with one of the coolest ideas in modern tech: turning smooth, continuous sound waves into precise sequences of numbers. Those numbers are what your devices record, stor...
Join discussion
Sep 30, 2025 · 16 min read · The Foundation of Digital Systems Every piece of data you interact with—from a streaming video to a simple text message—is built on nothing more than 1s and 0s. This is the language of binary numbers. But if our digital world is just a flood of 1s an...
Join discussion
Jul 14, 2025 · 6 min read · Master this essential coding interview problem with our step-by-step approach and optimized C++ solution Problem Overview LeetCode Problem 1290 is a fundamental coding interview question that tests your understanding of: Linked List traversal Bina...
Join discussionJul 1, 2024 · 4 min read · How do we write down a negative number? When using pen and paper, it's quite simple - put the minus (-) sign in front of the number. For example, if we want to write the negative of the number 5, we write -5. That's simple and straightforward. Now, l...
Join discussion
Jun 13, 2024 · 4 min read · Welcome! If you’re into backend development, understanding buffers is essential. But before we get there, let's start with the basics: binary numbers, hexadecimal, and character encoding. By the end of this post, you'll have a solid grasp of buffers ...
Join discussion
Nov 28, 2023 · 5 min read · This article is a summary of Chapter 2 of: Yazawa, H. (2015). 程序是怎么跑起来的[How Program Works] (L. Fengjun, Trans.). People's Posts and Telecommunications Press Reason for using Binary in Computers Computers are constructed by integrated circuits (IC). T...
Join discussionFeb 12, 2023 · 3 min read · Originally published here. Since binary numbers can have only two digits/symbols either 0 or 1, it is not possible to add minus or plus symbol in front of a binary number. In a decimal number, we add a minus symbol in front of a number if it is negat...
Join discussion
Jan 13, 2023 · 2 min read · We know that a number gets stored in 8 bits, as a programmer you might also know that numbers range from (-128 to 127) in 1 byte. But 2^8 = 256 isn't it? So why? How do the negative numbers come into the picture and why it's not (-256 to 256) or not ...
Join discussionOct 4, 2022 · 5 min read · The world is all techy, and one cannot afford to miss the moving train of technology. In this article, I have tried to piece together some information you may find very useful. WHAT IS A COMPUTER? A computer, as stated by Chris Woodford (2021) “is ...
Join discussion