A PC network is a system that connects multiple independent computers and devices to share information and resources. These networks can be created using either cable or wireless media and rely on hardware and software to connect all devices. In this article, we will explore the different types of PC networks and the rules for creating a good network.
Types of Nodes in a PC Network:
In a PC network, various types of nodes exist, such as servers, networking hardware, computers, and other specialized or general-purpose hosts. Hostnames and network addresses are used to identify these nodes.
Rules for Creating a Good Network:
To create a good network, there are three primary rules to follow:
Performance: A network's performance can be measured in many ways, such as broadcast time and response time. Broadcast time refers to the time it takes for a message to travel from one device to another. Response time is the time between an order and a response. The network's performance depends on several factors, such as the number of users, the type of medium and hardware.
Reliability: In addition to accuracy, reliability is measured by the frequency of failure, the time it takes for a connection to recover from failure, and the network's resilience in a disaster.
Security: Network security issues include protecting data from unauthorized access, safeguarding data from damage and improvement, and implementing policies and procedures for recovery from breaches and data loss.
Objectives of Networking:
Networking has many objectives, including:
Resource and load sharing: Programs do not have to run on a single system, as resources and load sharing can be achieved through networking.
Cost reduction: Various machines can share printers, tape drives, and other peripherals, resulting in cost savings.
Reliability: If one machine fails, another can take its place.
Scalability: Adding more processors or computers is straightforward.
Communication and mail: People living apart can collaborate through remote communication tools like email, video conferencing, and internet shopping.
Entertainment: Interactive entertainment like online games and videos are made possible through networking.
Social networking: Social networking platforms allow people to connect and share information.
Types of Networks:
PC networks can be classified based on the communication medium and area covered:
Wired Network: A wired network uses cables like copper wire, twisted pair, or fiber optic cables to connect devices to the Internet or another network.
Wireless Network: A wireless network uses electromagnetic waves or infrared waves for communication between devices. Devices like laptops, tablets, and smartphones use radio frequency waves to communicate with each other.
LAN (Local Area Network): A LAN is a network that covers an area of about 10 kilometers. It can include one or more offices, buildings, or campuses. Each host in a LAN has a unique identifier that defines the host's address.
MAN (Metropolitan Area Network): A MAN refers to a network that covers an entire city. For example, a digital telecom company may use a MAN to connect its offices across a city.
Conclusion:
PC networks are an essential tool for modern communication, collaboration, and entertainment. By understanding the different types of networks and following the rules for creating a good network, you can build a reliable, secure, and efficient network for your organization or personal use.