Hey readers, am excited to welcome you to this blog. Here, I have put together some detailed notes and summaries, along with screenshots.

Well, it all started when I started studying computer networking with Gate Smashers. I had a tough time finding any websites that offered notes or summaries for the course.

So, I decided to do it myself. Feel free to bookmark this page so you can easily come back whenever you need to revise the concepts again. If you spot any errors or typos, please drop a comment and I’ll fix them as soon as possible.

I will be updating this blog as I continue through the course, so you can expect fresh content over time. Of course, this is not a standalone note, you need to watch the videos at least once to understand the screenshots.

Lec-1: Computer Networks and Security Full Syllabus for GATE, UGC NET, DSSSB, NIELIT & University exam

Topics Covered –

1. Introduction
2. Physical Layer
3. Data Link Layer
4. Network Layer
5. Transport Layer
6. Session and Presentation Layer
7. Application Layer
8. Network Security

Detailed PDF LINK

Lec-2: Introduction to Computer Network | OSI MODEL in Easiest Way | Need of OSI model

Topics Covered –

1. Introduction
2. Functionalities

Detailed PDF Link

Lec-2.1: LAN, MAN, WAN, PAN, CAN | Computer Networks

Topics Covered –

1. LAN, PAN, CAN, MAN, and WAN

Detailed PDF

Lec-3: TCP/IP Protocol Suite | Internet Protocol Suite | OSI vs TCP/IP

Topics Covered –

1. TCP/IP Protocol Suite
2. Internet Protocol Suite
3. Transmission Control Protocol/Internet Protocol
4. Networking Protocols
5. Communications Protocol

Detailed PDF

Lec-4: Physical layer in computer networks | Functions of Physical layer | OSI

Topics Covered –

1. Introduction
2. Cables and Connectors
3. Topology
4. Hardware (Repeaters, Hubs)
5. Transmission mode
6. Multiplexing
7. Encoding

Detailed PDF

Lec-5: Topologies in Computer Networks | Part-1 | All imp points of Mesh, Star, Hub, Bus, Hybrid

Topics Covered –

1. Introduction
2. Mesh Topology
3. Star Topology

Detailed PDF

Lec-6: Topologies in Computer Networks | Part-2 | All imp points of Mesh, Star, Hub, Bus, Hybrid

Topics Covered –

1. Introduction
2. Bus Topology
3. Ring Topology

Detailed PDF

Lec-7: Manchester encoding and differential Manchester encoding| Computer Network

Topics Covered –

1. Introduction
2. Manchester encoding
3. Differential Manchester encoding

Detailed PDF

Lec-8: Various Devices In Computer Networks | Hardware and Software Devices | Communicating devices

Topics Covered –

1. various devices used in Computer Networks.

Detailed PDF

Lec-9: Types Of Cables in Computer Networks | Coaxial, twisted pair, fiber optic cable

Topics Covered –

1. Introduction
2. Unshielded Twisted Pair cable
3. Coaxial cable
4. Fiber Optic cable

Detailed PDF

Lec-10: Repeaters in Computer Networks | Physical layer devices

Topics Covered –

1. Introduction
2. Repeaters

Detailed PDF