Whats a Computer Network?
A computer network is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections (data links) between nodes. These data links are established over cable media such as wires or optic cables, or wireless media such as WiFi.
Two basic network types in a nutshell
Two basic network types are local-area networks (LANs) and wide-area networks (WANs).
LANs connect computers and peripheral devices in a limited physical area, such as a business office, a laboratory, or a college campus, by means of links (wires, Ethernet cables, fiber optics, WiFi) which transmit data rapidly.
A typical LAN consists of two or more personal computers, printers, and high-capacity disk-storage devices called file servers, which enable each computer on the network to access a common set of files. LAN operating system software, which interprets input and instructs networked devices, allows users to communicate with each other; share the printers and storage equipment; and simultaneously access centrally located processors, data, or programs (instruction sets).
WANs connect computers and smaller networks to larger networks over greater geographic areas, including different continents. They may link the computers by means of cables, optical fibers, or satellites, but their users commonly access the networks via a modem (a device that allows computers to communicate over telephone lines).
The largest WAN is the Internet, a collection of networks and gateways linking billions of computer users on every continent.
To understand how the networks work and to learn how the flow of packets actually take place, Cisco Packet Tracer can be used.
It is an innovative and powerful networking simulation tool used for practice, discovery and troubleshooting.
A computer network is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections (data links) between nodes. These data links are established over cable media such as wires or optic cables, or wireless media such as WiFi.
Two basic network types in a nutshell
Two basic network types are local-area networks (LANs) and wide-area networks (WANs).
LANs connect computers and peripheral devices in a limited physical area, such as a business office, a laboratory, or a college campus, by means of links (wires, Ethernet cables, fiber optics, WiFi) which transmit data rapidly.
A typical LAN consists of two or more personal computers, printers, and high-capacity disk-storage devices called file servers, which enable each computer on the network to access a common set of files. LAN operating system software, which interprets input and instructs networked devices, allows users to communicate with each other; share the printers and storage equipment; and simultaneously access centrally located processors, data, or programs (instruction sets).
WANs connect computers and smaller networks to larger networks over greater geographic areas, including different continents. They may link the computers by means of cables, optical fibers, or satellites, but their users commonly access the networks via a modem (a device that allows computers to communicate over telephone lines).
The largest WAN is the Internet, a collection of networks and gateways linking billions of computer users on every continent.
To understand how the networks work and to learn how the flow of packets actually take place, Cisco Packet Tracer can be used.
It is an innovative and powerful networking simulation tool used for practice, discovery and troubleshooting.
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