The generic term network refers to a group of entities (for example. objects, people, etc.) that are connected. A network, therefore, allows material or immaterial elements to be circulated among all of these entities based on well-defined rules. Depending on what kind of entity is involved, the term used will differ.
What is a network?
A computer network is a group of computers linked to one another with physical lines, exchanging information as digital data (binary values, i.e., values encoded as a signal that can represent either 0 or 1). There isn't just one kind of network, as historically, there have been different kinds of computers using various languages to communicate. The need for multiple types of networks also arises from the heterogeneity of the physical transmission media that link them together, whether that means the data is transferred the same way (such as by electrical pulses, light beams, or electromagnetic waves) or uses the same kind of physical medium (such as coaxial cable, twisted pairs, or fiber-optic lines).
How the networking sections are organized?
The networking section of CCM.net is divided into several chapters.
The present section describes what a network is and the different types of networks that exist.
The data transmission section is about how each piece of data is transmitted in each type of medium.
The network equipment section describes the different equipment used to connect computers.
Why networks are important?
A computer is a machine used to manipulate data. Humans, being a communicative species, quickly understood why it would be helpful to link computers to each other to exchange information.
A computer network can serve several distinct purposes (whether it is for a business or individual use):
- Sharing resources (e.g., files, applications or hardware, an Internet connection, etc.).
- Communication between people (e.g., e-mail, live discussions, etc.).
- Communication between processes (e.g., between industrial computers).
- Guaranteeing full access to information for a specified group of people (i.e., networked databases).
- Multiplayer video games.
Networks are also used for standardizing applications. The term groupware is generally used to refer to tools that let multiple people work over a network. For example, email and group scheduling can communicate more quickly and efficiently. Here's a glimpse of such systems' advantages: lower costs due to the sharing of data and peripherals, standardizing applications, providing timely access to data, and more efficient communication and organization.
What are the similarities between types of networks?
The different types of networks generally have the following points in common:
- Servers: computers that provide shared resources to users using a network server.
- Clients: computers that access the shared resources provided by a network server.
- A connection medium: how the computers are linked together.
- Shared data: files that can be accessed on the network servers.
- Printers and other shared peripherals: include files, printers, or other elements employed by the network's user.
- Miscellaneous resources: provided by the server.
What are two types of networks?
There are usually two types of networks: peer-to-peer networks and client/server, which are networks organized around servers. These two types of networks have different capabilities. The choice of the network to install depends on the following criteria: the size of the business, level of security required, type of activity, skills of the administrators available, the volume of traffic over the network, needs of the network's users, and budget set aside for operating the network (not just purchasing it, but also upkeep and maintenance).
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