Computer Networking

  I.   A network is a collection of Computers, Servers, Mainframes, Network devices, peripherals ( A peripherals device connects to a computer system to add functionalities.), or other devices connected to one another to allow the sharing of data. An excellent example of a network is the Internet, which connects millions of peoples all over the world.

II.  A network is nothing more than two or more computers connected by a cable or by a wireless radio connection so that they can exchange information.

Computer Networking 

Computer Network

1. Interconnections of two or more computers and peripherals.
2. Allows users to share and transfer information.

 Examples of Network Devices

• Desktop Computers, Laptops, Mainframes, and Servers.
• Consoles and thin Clients.
• Firewalls
• Bridges 
• Repeaters
• Network Interface Card
• Switches, Hub, Modems, and Routers.
• Smartphones and Tablets.
• Webcams and IpCam.

Needs Of Computer Network

• Sharing Resources
• Reduced Cost
• Reduced Time 
• Scalability
• Reliability
• Security

Classification of Computer Networks

        Computer networking is classified based on various factors. They include:
        1.  Geographical Span
        2.  Inter-Connectivity
        3.  Administration
        4. Architecture 

Types of networking

Computer networking is two primary types of computer networking: 

1. Wired Networking
2. Wireless Networking

Wired Networking

Wired networking requires the use of a physical medium for transport between nodes. Copper-based Ethernet cabling, popular due to its low cost and durability, is commonly used for digital communications in businesses and homes. Alternatively, optical fiber is used to transport data over greater distances and at faster speeds, but it has several tradeoffs, including higher costs and more fragile components.

Wireless Networking

Wireless networking uses radio waves to transport data over the air, enabling devices to be connected to a network without any cabling. Wireless LANs are the most well-known and widely deployed form of wireless networking. Alternatives include microwave, satellite, cellular, and Bluetooth, among others.