Computing Concepts

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computing device

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A physical device that can run a program, such as a computer, smart phone, or smart sensor.

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computer network

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A group of interconnected computing devices capable of sending or receiving data.

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bandwidth

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The maximum amount of data that can be sent in a fixed period of time over a network connection, typically measured in bits per second.

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protocol

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An agreed upon set of rules that specify the behavior of a system.

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scalability

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The ability of a system to adjust in scale to meet new demands.

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IP (Internet Protocol)

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The protocol that determines how to address nodes on the network (with IP addresses) and how to route data from one node to a destination node (using routers).

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TCP (Transmission Control Protocol)

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A data transport protocol that includes mechanisms for reliably transmitting packets to a destination.

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UDP (User Datagram Protocol)

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A lightweight data transport protocol with minimal error checking.

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World Wide Web

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A system of linked pages, media, and files, browsable over HTTP.

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HTTP (Hypertext Transfer Protocol)

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The protocol that powers the Web, used to request webpages from servers and submit form data to servers.