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XSXianyu Shengxianyu-sheng.hashnode.devJan 28 · 2 min read

计算机：位运算介绍

其实位运算（Bitwise Operation）的本质就是数字逻辑电路（与门、或门、非门、异或门）在代码层面的直接应用。相比于加减乘除这些“宏观”运算，位运算是直接指挥 CPU 的 ALU（算术逻辑单元）去拨弄内存里的开关，所以它通常是最快的。我把常见的位运算操作符比作你物理实验箱里的工具，用大白话给你盘点一下：一、基础工具箱：六大金刚 1. 按位与 & (AND) —— “严苛的安检门” / 串联电路规则：两个都是 1，结果才是 1；否则是 0。物理直觉：串联电路。两个开关都...

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OAOyindamola Abiolaoyindamolaabiola.hashnode.devNov 27, 2025 · 6 min read

Bits, Bytes & Storage Capacity

How Computers Count What They Can Hold After understanding binary and the conversions, I got into storage and got all confused again; how do all these turn into storage? Like, when someone says "this file is 2MB" or "you have 8GB of RAM," what does t...

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DSDivyansh Sharmadivyanshblogs.hashnode.devSep 5, 2025 · 2 min read

Why Your "1TB" Laptop Shows Only 931GB: MiB vs MB Explained

Have you ever bought a 1TB laptop or external hard drive, only to find that your operating system shows something like 931GB instead? Don’t worry, your storage isn’t broken. Manufacturer is also not scamming you by false advertisement. This happens b...

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DSDivyansh Sharmadivyanshblogs.hashnode.devAug 26, 2025 · 2 min read

In real life swapping - XOR Trick vs Temp variable?

Introduction When we learn about swapping of 2 variables , we find 2 common methods -1. Using a temporary variable2. Using the xor trick #include <iostream> using namespace std; void swapWithTemp(int &x, int &y){ int temp = x; x = y; y =...

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NSNitin Saininitin-saini.hashnode.devJul 17, 2025 · 7 min read

Inside the Machine: Deconstructing Addition at the Binary Level

We think we are creating the system for our own purposes. We believe we are making it in our own image... But the computer is not really like us. It is a projection of a very slim part of ourselves: that portion devoted to logic, order, rule, and cla...

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MBMohit Bhutanimohitbhutani09.hashnode.devMay 24, 2025 · 1 min read

Bits, Bytes, Bhutani Epi 1 - Null Games

Starting this fun lil’ series: Bits, Bytes & Bhutani ! A weekly dose of data, drama & dry humor from my 12 year ride in analytics and a bit in governance. Doesn’t matter if it’s Monday blues or Thursday chaos — the goal is simple:Give you a smile...

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SASumaiya Akter Riacs50blogs.hashnode.devJan 12, 2025 · 5 min read

CS50 Week 0: Part 1

What is CS50???? CS50, or "Introduction to Computer Science," is a popular introductory course offered by Harvard University. It covers the fundamentals of computer science and programming. In this course, you will learn: Programming Languages: You'...

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ASAtanu Sarkardisciple.hashnode.devJan 8, 2024 · 4 min read

What about that point? Just let it float, duh

This piece presents an utterly complicated topic - IEEE754 Standard - in its distilled form, so it's relatively short. I've been prohibited from sharing any of the problems from my lab sessions. Apologies for that. But I've tried hard to subside the ...

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YBYusuf Bin Musayusufaine.devOct 8, 2023 · 1 min read

Hello, world!

So... who am I? Just another software engineer/developer who likes to write things down and share what I've learnt. I find joy in being able to talk about and share the things that I've learned so others can learn from my experience (mistakes and bre...

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DPDhawal Pandyadhawalpandya01.hashnode.devJun 18, 2023 · 2 min read

Understanding the 'byte' Type in Go

When transitioning from JavaScript to Go, one encounters various differences in language syntax and data types. One such type in Go that might seem unfamiliar to JavaScript developers is the 'byte' type. It is an alias for the uint8 type. Memory Repr...

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#bits

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Trending tags this week

计算机：位运算介绍

Bits, Bytes & Storage Capacity

Why Your "1TB" Laptop Shows Only 931GB: MiB vs MB Explained

In real life swapping - XOR Trick vs Temp variable?

Inside the Machine: Deconstructing Addition at the Binary Level

Bits, Bytes, Bhutani Epi 1 - Null Games

CS50 Week 0: Part 1

What about that point? Just let it float, duh

Hello, world!

Understanding the 'byte' Type in Go