Network Connections provides connectivity between your computer and the Internet, a network, or another computer. With Network Connections, you can configure settings to reach local or remote network resources or functions.

A client/server network is a system where one or more computers called clients connect to a central computer named a server to share or use resources.

• Point-to-Point Communications
  It is a communication between two computers using a serial interface, typically a personal computer connected by phone line to a server. Internet server provider may provide you with a PP connection so that the provider's server can respond to your requests, pass them on to the Internet, and forward your requested Internet responses back to you.
• Multi-Point Communications
  A multipoint connection is a communication channel between two or more clients of the network, where all data sent by one client is received by all other clients. A point-to-point connection is a special case of a multipoint connection involving only two clients. It is more economical. It requires a programmer to run it and facilitate each transmitter to receive data.

There are several different types of computer networks. Computer networks can be characterized by their size as well as their purpose. The size of a network can be expressed by the geographic area they occupy and the number of computers that are part of the network. Networks can cover anything from a handful of devices within a single room to millions of devices spread across the entire globe. Some of the different networks based on size are:

• LAN (Local Area Network)
  It's a group of computers which all belong to the same organization, and which are linked within a small geographic area using a network, and often the same technology. A local area network is a network in its simplest form. Data transfer speeds over a local area network can reach up to 10, 100, 1000 Mbps. A local area network can reach as many as 100, or even 1000, users.
• WAN (Wide Area Network)
  A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs). Computers connected to a wide-area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites.
• MAN (Metropolitan Area Network)
  MAN connects multiple geographically nearby LANs to one another over an area of up to a few dozen kilometers at high speeds. Thus, a MAN lets two remote nodes communicate as if they were part of the same local area network in the same city or the nearby cities.

• Commercial Purposes
• Managerial Purposes
• Scientific Purposes