A computer network connects various computers and peripheral devices via transmission media and connecting devices. It allows for sharing of hardware and software resources between connected computers. A network provides services like file sharing, applications, email and web browsing. The basic elements of a computer network include end devices, connecting devices, transmission medium, messages and protocols that govern information transfer.

1. What is A Computer
Network?

2. Definition of a Computer Network
▪A group of computers (hosts/nodes)
and computer peripherals connected
via a transmission media and
connecting devices

3. Computer Types
▪Personal Computers (PCs)
▪ Desktop Computer
▪Laptops
▪Tablets
▪Smart Mobile Phones
▪Embedded Systems in Machines
▪ Internet of Things (IoT)

4. Computer Peripherals
▪Hardware connected to computer
▪ Printers
▪ Scanners
▪ Storage Media
▪Cloud Computing and Data Center
▪ Servers
▪ Storage Devices
▪ Managing Terminals
▪ Offers several types of services

5. Transmission Media
▪Wired (Cables)
▪ Copper
▪ Coaxial Cables
▪ Twisted Pair Cables (Shielded/Unshielded)
▪ Fiber Optic
▪ Single Mode
▪ Multi-Mode
▪Wireless
▪ Air as Transmission Media
▪ Frequency Band
▪ Area of Coverage

6. Network Benefits and Services
▪Resources Sharing
▪ Hardware Resources
▪ Computer Peripherals
▪ Storage Media
▪ Processors
▪ Software Resources
▪ File Sharing
▪ Databases
▪ Applications
▪Services
▪ Browsing and E-mail
▪ Voice Calls and Video Conferences

7. Basic Network Elements
▪End Devices
▪ Communicating with each other (Send/Receive)
▪Connecting Devices
▪ Switches, Routers, and Access Points
▪Medium
▪ How devices connected?
▪Messages
▪ Information travelling through network
▪Protocols
▪ Rules governing information transfer

8. Thank you
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