The Internet and Computer Networks Explained | Transmission Media – Lesson 2
Do you need to learn about the Internet and Computer Networks in a simple and practical way?
Are you preparing for a university exam, a competitive exam, or do you want to work in the IT and Cybersecurity sector?
In this lesson, we'll explore network transport media, technically called transmission media: everything that allows data to travel from one point to another.
This complete and free Internet and Networks course (2025) takes you step-by-step through understanding how computer networks actually work.
In this lesson, you will learn:
What transmission media are
Coaxial cables and twisted pairs (UTP, STP)
Single-mode and multimode fiber optics
Radio waves, Wi-Fi, and mobile networks
GEO, MEO, and LEO satellites
Fundamentals for networking and cybersecurity
🔐 After this course, you can continue with the Cybersecurity course (20 lessons):
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My goal is to make complex topics, often treated in a boring or overly theoretical manner, understandable using simple, realistic language.
Some advanced terminology is deliberately simplified to help even those without technical expertise.
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The chapters of the 2nd lesson of Internet and Networks are structured as follows:
00:00 Intro
01:19 Who is Guglielmo Marconi
02:26 The Fanpage.itl article
02:44 Beginning - Network transport media
02:51 What are network transport media?
04:12 How Communication Happens
04:33 Transmission Media
05:36 Taking Notes
05:59 Coaxial Cables
08:23 Twisted Pair
09:11 Unshielded Twisted Pair
10:23 Shielded Twisted Pair
10:29 Double-Shielded Twisted Pair
11:07 Optical Fiber
11:31 Multimode Fiber (MMF)
12:47 Single-Mode Fiber (SMF)
13:24 Which Fiber Is Best to Use?
4:32 PM A quick recap
4:55 PM Sound waves
6:25 PM Radio waves
8:16 PM Radio channels
10:00 PM How radio channels are managed
10:20 PM GSM - UMTS - LTW - 5G
11:05 PM Wi-Fi
11:38 PM Satellites
12:46 PM Geostationary satellites (GEO)
12:06 PM Intermediate Earth Orbits (MEO)
12:22 PM Low Earth Orbits (LEO)
12:31 PM Recap
12:23 PM Contact me
12:45 PM Upcoming topics
12:35 PM www.digitaleconrob.it
I invite you to watch the entire video. Watch it first, listen, and understand. Then take notes. There's a reason, and the reason is explained the further you go.
The next topics will be:
Lesson 2: Wired Networks: • Corso completo internet e reti gratis 2025...
Lesson 3: Wireless Networks
Lesson 4: Mobile Radio Networks
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