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2.1 Basic concept of Network - Coggle Diagram
2.1 Basic concept of Network
What is Network : A network is a collection of computers and devices connected together via communication devices and transmission media.
Communication Devices is any type of hardware capable of transmitting data,instructions,and information between a sending device and a receiving device.
Example of Communication Devices :
Dial-up modem
Digital modems
Wireless modem
Network cards
Wirelesss access points
Routers
Hubs/Switches
Transmission Media : Transmission media consist of materials or substances capable of carrying one or more communication signals.
Types of Transmission Media :
Physical Transmission Media
Eg : Twisted pair , Coaxial cable , Fiber optic
Wireless Transmission Media
Eg : Infrared ,Broadcast radio , Cellular radio , Microwave, Communication Satellite
Advantages of using network
Facilitating communications
Sharing hardware
Sharing data and information
Sharing software
Disadvantages of using network
The set-up and maintenance costs can be expensive .
A fault with the network server can cause difficulties with the organization.
Networks can be vulnerable to security breaches and cyberattacks.Hackers can exploit network vulnerabilities to gain unauthorised access to sensitive data or disrupt network operations.