Narrated PowerPoint presentation (PPTX format) on Computer Networks.
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The presentation contains 19 slides and is suitable for IT lessons in secondary schools, vocational schools, and colleges.

Slide Contents:
Definition of "Computer Network"
Computer Roles in a Network
Types of Computer Networks by Geographic Scope (PAN, LAN, MAN, WAN)
Types of Computer Networks by Architecture (Client-Server vs. Peer-to-Peer)
Data Transmission Process
Types of Network Devices
Network Interface Card (NIC)
Router
MAC Address
IPv4 and IPv6
Types of Cabling Systems
Twisted Pair Cable
RJ-45 (8P8C) Connectors
Crimping Tool
Twisted Pair Classification by Shielding (UTP, FTP, STP, S/FTP)
Structure of Fiber-Optic Cable
Types of Wireless Connectivity
Network Protocols