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A computer network is a system that connects two or more computing devices together so they can communicate and share resources. These devices include everything from a mobile phone to a server and can be connected through physical wires such as fibre topics, or entirely wirelessly via WiFi.
A computer network is a group of two or more computer systems linked together by communications channels to share data and information. Networks often link thousands of users and can transmit audio and video as well as data. Networks include clients and servers.
Jun 12, 2024 · A computer network is a system that connects many independent computers to share information (data) and resources. The integration of computers and other different devices allows users to communicate more easily.
- Network Devices
- Links
- Communication Protocols
- Network Defense
This is a catch-all term that’s further divided into sub-groups. 1. End devices: This covers computers, smartphones, and other peripheral devices (e.g., printers, fax). 2. Servers: These are the machines dedicated to storage and applications, where all the computations, data processing, and storage happens. 3. Routers: These devices forward packets...
Links are the methods used to transmit data. They break down into: 1. Wired links. These links include phone lines, coaxial cable, and fiber optics. 2. Non-wired links. Wireless connections include cellular networks, satellites, or other forms of radio or electromagnetic signals.
Communication protocols are sets of rules that all the information-transferring nodes follow. Typical protocols include TCP/IP,wireless LAN, IEEE802, Ethernet, and cellular. TCP/IP is the predominant model for today’s Internet structure and presents this standard layer configuration for communication links: 1. Network access layer: Defines how the ...
This vital element covers everything needed to keep the network safe. Defenses include firewalls, content filters, load balancers, and intrusion detection and prevention systems.
“Information systems are combinations of hardware, software, and telecommunications networks that people build and use to collect, create, and distribute useful data, typically in organizational settings.”
- Dave Bourgeois, David T. Bourgeois
- 2014
Dec 21, 2020 · A network consists of nodes, links between nodes, and protocols that govern data transmission between nodes. At whatever scale and complexity networks get to, you will understand what’s happening in all computer networks by learning the OSI model and 7 layers of networking.
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Part I: What is an information system? Chapter 5: Networking and Communication. Learning Objectives. Upon successful completion of this chapter, you will be able to: understand the history and development of networking technologies; define the key terms associated with networking technologies;
