Computer Networks

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A collection of interconnected computers that can communicate with each other by using a common communication protocol.

Network Topologies: The physical and logical layout of computer networks.
Network Protocols: The communication standards and rules that govern network communication, including TCP/IP, SMTP, IMAP, HTTP, and others.
Network Security: The methods and technologies used to protect computer networks from unauthorized access, including firewalls, encryption, and intrusion detection.
Wireless Networking: The principles and practices of wireless networking, including Wi-Fi, Bluetooth, and ZigBee.
Network Addressing: The way that computers on a network are identified, including IP addressing and MAC addressing.
Network Technologies: The technologies that make up computer networks, including LANs, WANs, MANs, and VPNs.
Network Devices: The hardware components that are used to create and maintain computer networks, including routers, switches, and hubs.
Network Administration: The tasks involved in managing and maintaining computer networks, including network monitoring, troubleshooting, and performance optimization.
Cloud Computing: Concepts and frameworks for delivering computing resources over the internet.
Virtualization: Creating multiple, virtual versions of operating systems or network resources on a single physical computer.
Distributed Systems: Networked computing systems that are spread over multiple physical locations.
Network Performance: Ways to measure, evaluate, and improve the speed and efficiency of a computer network, including bandwidth, latency, and throughput.
Internet of Things: Connected devices and sensors that interact with each other and with humans.
Network Programming: Development and testing of software applications that interact with networked devices and services.
Personal Area Network (PAN): A computer network used for communication between personal devices over a short distance, such as within a room or building.
Local Area Network (LAN): A network of computers in a small geographic area, such as within a building or campus, that allows for the sharing of resources such as printers and files.
Metropolitan Area Network (MAN): A network of computers that spans a larger geographic area than a LAN, typically covering a city or region.
Wide Area Network (WAN): A network of computers that covers a large geographic area, often spanning multiple cities or countries, and is typically used for connecting remote locations.
Storage Area Network (SAN): A high-speed network that is designed to provide access to large amounts of shared storage devices, such as hard drives and tape libraries.
Virtual Private Network (VPN): A secure network connection that uses public networks, such as the internet, to provide access to a private network.
Cloud Network: A network of computers that are hosted remotely and accessed via the internet, typically used for storing and processing data.
Wireless Network: A network that enables wireless communication between devices, through the use of radio waves or other wireless technologies.
Voice over IP Network (VoIP): A network that enables voice communication over the internet, typically used for phone calls and video conferencing.
Peer-to-Peer Network (P2P): A network that allows two or more computers to share files and other resources without the need for a central server or authority.
"A computer network is a set of computers sharing resources located on or provided by network nodes."
"Computers use common communication protocols over digital interconnections to communicate with each other."
"These interconnections are made up of telecommunication network technologies based on physically wired, optical, and wireless radio-frequency methods."
"The nodes of a computer network can include personal computers, servers, networking hardware, or other specialized or general-purpose hosts."
"They are identified by network addresses and may have hostnames."
"Hostnames serve as memorable labels for the nodes and are rarely changed after initial assignment."
"Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol."
"Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications protocols to organize network traffic, the network size, the topology, traffic control mechanisms, and organizational intent."
"Computer networks support many applications and services, such as access to the World Wide Web, digital video and audio, shared use of application and storage servers, printers and fax machines, and use of email and instant messaging applications."
"The nodes of a computer network can include personal computers, servers, networking hardware, or other specialized or general-purpose hosts."
"Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol."
"These interconnections are made up of telecommunication network technologies based on physically wired, optical, and wireless radio-frequency methods."
"Hostnames serve as memorable labels for the nodes and are rarely changed after initial assignment."
"A computer network is a set of computers sharing resources located on or provided by network nodes."
"Computer networks support many applications and services, such as access to the World Wide Web."
"The nodes of a computer network can include personal computers, servers, networking hardware, or other specialized or general-purpose hosts."
"Computers use common communication protocols over digital interconnections to communicate with each other."
"Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications protocols to organize network traffic, the network size, the topology, traffic control mechanisms, and organizational intent."
"Computer networks support many applications and services, such as shared use of application and storage servers, printers and fax machines."
"Computer networks support many applications and services, such as access to the World Wide Web, digital video and audio, shared use of application and storage servers, printers and fax machines, and use of email and instant messaging applications."