Physical Layer OSI Model Crash Course Part 1 | Transmission, Media, Modulation, ISDN скачать в хорошем качестве

Physical Layer OSI Model Crash Course Part 1 | Transmission, Media, Modulation, ISDN

Dive deep into the Physical Layer — the core foundation of data communication and computer networks — in this 1-hour crash course with 100% free notes! This session is part of the Networking Crash Course Series, helping you master networking from the ground up. The Physical Layer handles the actual transmission of data, defining how signals, cables, and devices enable global communication. ⚙️ What You’ll Learn: 🌍 Introduction to the Physical Layer Role and objectives of the Physical Layer in computer networks How data is transmitted as electrical, light, or radio signals 🔌 Transmission Media Guided Media: Twisted pair, coaxial, and optical fiber cables — structure, use, and comparison Unguided Media: Radio waves, microwaves, and infrared signals explained with applications 🔁 Transmission Modes Simplex, Half-Duplex, and Full-Duplex communication explained with real-world examples When and why to use each mode for efficient communication 🎛️ Modulation Techniques Amplitude (AM), Frequency (FM), Phase (PM), and Quadrature Amplitude Modulation (QAM) Learn how digital data is converted into signals for transmission 🔄 Switching Methods Circuit Switching, Packet Switching, and Message Switching explained in detail Understand how data travels through networks efficiently and reliably 📞 Integrated Services Digital Network (ISDN) Architecture, channels, and services B Channels (Bearer): Carry voice/video/data D Channels (Delta): Handle signaling and control Learn how ISDN supports voice, video, and data transmission with advanced telecommunication features 💻 Terminal Handling Data Terminal Equipment, Configuration, and Emulation — how end devices interact with networks This lecture is perfect for students, networking beginners, and IT professionals aiming to understand how networks actually work at the physical level. 🎓 Bonus: Free downloadable notes available in the video description for easy revision and exam prep! 🧠 Why Watch This Video By the end of this crash course, you’ll: Understand how real-world data travels across media Learn how modulation and switching make networks efficient Grasp how ISDN revolutionized digital communication Strengthen your foundation for advanced networking topics 👍 Like if this course helped you 💬 Comment your next topic request 🔔 Subscribe for more videos on networking and data communication Let’s master the building blocks of communication — one layer at a time! 🌐✨ Timestamps 00:00:00 - Introduction 00:01:09 - introduction To Physical layer 00:12:08 - Introduction To Transmission 00:17:34 - Transmission Modes 00:20:39 - Modulation Techniques 00:25:08 - Switching Methods 00:42:34 - Introduction To Integrated Service Digital Network 00:49:13 - ISDN Architecture 00:52:00 - ISDN Services 00:54:18 - ISDN Channels 00:56:50 - Terminal Handling 01:08:56 - Conclusion 01:12:56 - IMP Questions & Answers 👉 GET All Crash Course Notes For FREE 100% - https://github.com/sheikhamir1/Data-c... 👉 Watch Complete Playlist Here -    • Computer Networks Zero to Hero (Complete 2...