A computer network connects multiple computers together to share resources using common communication protocols over digital connections. Networks can be formed using wired, wireless, or optical technologies in various topologies. They support many applications like accessing the web, file sharing, printing, messaging, and more. Personal area networks connect devices like computers and phones. Local area networks connect devices within a limited space like a home or office. Wide area networks span large geographic areas by connecting local networks with telephone lines or radio waves. Metropolitan area networks cover regions the size of a city or campus, larger than a local network but smaller than a wide area network.

1. Computernetwork
A computer network is a group of computers that use a set of common communication
protocols over digital interconnections for the purpose of sharing resources located on or provided
by the network nodes. The interconnections between nodes are formed from a broad spectrum
of telecommunication network technologies, based on physically wired, optical, and wireless radio-
frequency methods that may be arranged in a variety of network topologies.
Application of Computer Network
Computer networks support an enormous number of applications and services such as
access to the World Wide Web, digital video, digital audio, shared use of application and
storage servers, printers, and fax machines, and use of email and instant
messaging applications as well as many other
What is PAN (Personal Area Network)?
PAN is a computer network formed around a person. It generally consists of a
computer, mobile, or personal digital assistant. PAN can be used for
establishing communication among these personal devices for connecting to a
digital network and the internet.
What is LAN?
A Local Area Network (LAN) is a group of computer and peripheral devices
which are connected in a limited area such as school, laboratory, home, and
office building. It is a widely useful network for sharing resources like files,
printers, games, and other application
What is WAN?
WAN (Wide Area Network) is another important computer network that which
is spread across a large geographical area. WAN network system could be a
connection of a LAN which connects with other LAN's using telephone lines
and radio waves. It is mostly limited to an enterprise or an organization.
What is MAN?
A Metropolitan Area Network or MAN is consisting of a computer network
across an entire city, college campus, or a small region. This type of network
is large than a LAN, which is mostly limited to a single building or site.
Depending upon the type of configuration,