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Complete OS Roadmap 🚀: https://www.gatesmashers.com/roadmaps/operating-systems Semaphore is a variable that is non-negative and shared between threads. A semaphore is a signaling mechanism, and a thread that is waiting on a semaphore can be signaled by another thread. It uses two atomic operations, 1) Wait, and 2) Signal for the process synchronization. In this video, Varun sir will introduce Semaphore in detail in a simplest way possible. #operatingsystem -------------------------------------------------------------------------------------------------------------------------------------- Timestamps: 0:00 - Introduction 0:48 - Semaphore 2:42 - Various operations in Semaphore 4:59 - Entry section code 12:03 - Exit section code 19:56 - Questions on Semaphore -------------------------------------------------------------------------------------------------------------------------------------- 🚀 MASTER COMPUTER SCIENCE | INTERVIEWS | EXAMS Gate Smashers — Learn Computer Science through free lectures, structured playlists, interview resources, important questions, notes & exam preparation. 💻📚 🌐 FREE CS RESOURCES & INTERVIEW PREPARATION : https://gatesmashers.com ━━━━━━━━━━━━━━━━━━━━━━ 📚 SUBJECT-WISE COMPUTER SCIENCE PLAYLISTS ► Placement Interview Questions: https://youtube.com/playlist?list=PLUDPUBNI7KL4 ► System Design: https://youtube.com/playlist?list=PLxCzCOWd7aiHanm1nA5_fMwbx5dCNFkDX ► Deep Learning: https://youtube.com/playlist?list=PLxCzCOWd7aiHQ9Qyo70JCTkTxczPnVC6s ► Machine Learning: https://youtube.com/playlist?list=PLxCzCOWd7aiEXg5BV10k9THtjnS48yI-T&si=qPGIoiBrziIFs6CJ ► Design and Analysis of Algorithms (DAA): https://youtube.com/playlist?list=PLxCzCOWd7aiHcmS4i14bI0VrMbZTUvlTa ► Software Engineering: https://youtube.com/playlist?list=PLxCzCOWd7aiEed7SKZBnC6ypFDWYLRvB2 ► Database Management System (DBMS): https://youtube.com/playlist?list=PLxCzCOWd7aiFAN6I8CuViBuCdJgiOkT2Y ► Cloud Computing: https://youtube.com/playlist?list=PLxCzCOWd7aiHRHVUtR-O52MsrdUSrzuy4 ► Theory of Computation (TOC): https://youtube.com/playlist?list=PLxCzCOWd7aiFM9Lj5G9G_76adtyb4ef7i ► Artificial Intelligence: https://youtube.com/playlist?list=PLxCzCOWd7aiHGhOHV-nwb0HR5US5GFKFI ► Computer Networks (CN): https://youtube.com/playlist?list=PLxCzCOWd7aiGFBD2-2joCpWOLUrDLvVV_ ► Operating System (OS): https://youtube.com/playlist?list=PLxCzCOWd7aiGz9donHRrE9I3Mwn6XdP8p ► Structured Query Language (SQL): https://youtube.com/playlist?list=PLxCzCOWd7aiHqU4HKL7-SITyuSIcD93id ► Discrete Mathematics: https://youtube.com/playlist?list=PLxCzCOWd7aiH2wwES9vPWsEL6ipTaUSl3 ► Compiler Design: https://youtube.com/playlist?list=PLxCzCOWd7aiEKtKSIHYusizkESC42diyc ► Number System: https://youtube.com/playlist?list=PLxCzCOWd7aiFOet6KEEqDff1aXEGLdUzn ► Programming in C: https://youtube.com/playlist?list=PLxCzCOWd7aiGmiGl_DOuRMJYG8tOVuapB ► Data Structures: https://youtube.com/playlist?list=PLxCzCOWd7aiEwaANNt3OqJPVIxwp2ebiT ► Computer Architecture: https://youtube.com/playlist?list=PLxCzCOWd7aiHMonh3G6QNKq53C6oNXGrX ► Graph Theory: https://youtube.com/playlist?list=PLxCzCOWd7aiG0M5FqjyoqB20Edk0tyzVt ► Digital Logic: https://youtube.com/playlist?list=PLxCzCOWd7aiGmXg4NoX6R31AsC5LeCPHe ━━━━━━━━━━━━━━━━━━━━━━ 🌐 CONNECT WITH GATE SMASHERS ► Website: https://gatesmashers.com ► YouTube: https://youtube.com/gatesmashers ► Instagram: https://instagram.com/gate.smashers ► Telegram: https://t.me/gatesmashersofficial ► Facebook: https://facebook.com/gatesmashers ► Threads: https://threads.net/@gate.smashers GsetGo ► YouTube: https://youtube.com/@GSetgoofficial ► Instagram: https://instagram.com/gsetgo_ VarunNainaShots ► YouTube: https://youtube.com/@varunainashots ► Instagram: https://instagram.com/varunainashots ━━━━━━━━━━━━━━━━━━━━━━ Subscribe to Gate Smashers and start your Computer Science learning journey today! 🚀💻