Understanding Computer Networks

What is a network?

• A network constitutes two or more computers or other electronic devices that are connected together, typically via cables or Wi-Fi.
• Some computer networks include a server.
• A server is a powerful computer that serves as a central hub, offering services like emails, internet access, and file storage on the network.
• A client refers to each computer that connects to a server.
• A standalone computer is one that operates without being connected to a network.

Benefits of a network

• Networks facilitate the sharing of hardware such as printers.
• Networks also facilitate software sharing, allowing multiple users to run the same programs.
• Networks facilitate the sharing of data, enable shared work, and make data accessible from any computer on the network.
• Networking is essential for computer communication, enabling emails, texts, and instant messages.
• The internet is a large network used on a daily basis.
• People use the internet to share data, news, and resources.
• Around three billion people use the internet.

Network Problems

• Connecting computers or devices in a network can expose users to problems.
• Network failures can complicate tasks.
• It might not be possible to share photographs and opinions with friends if the network breaks.
• Networking computers and devices can make them vulnerable to hackers and viruses.
• Viruses predominantly spread through a network.
• Networks enable hackers to access other people's computers.
• Hackers would need to physically access your computer without a network connection.