Unit 2 Vocabulary - The Internet

Computing Device

a machine that can run a program, including computers, tablets, servers, routers, and smart sensors

Computing System

a group of computing devices and programs working together for a common purpose

Computing Network

a group of interconnected computing devices capable of sending or receiving data

Path

the series of connections between computing devices on a network starting with a sender and ending with a receiver

Bandwidth

the maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second

Protocol

sets of rules and standards that govern how devices communicate and exchange information with each other over a network.

IP Address

The unique number assigned to each device on the Internet

Internet Protocol (IP)

a protocol for sending data across the Internet that assigns unique numbers (IP addresses) to each connected device

Router

A type of computer that forwards data across a network

Packet

A chunk of data sent over a network. Larger messages are divided into packets that may arrive at the destination in order, out

Redundancy

the inclusion of extra components so that a system can continue to work even if individual components fail, for example by having more than one path between any two connected devices in a network

Fault Tolerant

Can continue to function even in the event of individual component failures. This is important because elements of complex systems like a computer network fail at unexpected times, often in groups

HTTP

HyperText Transfer Protocol

Domain Name System (DNS)

the system responsible for translating domain names like example.com into IP addresses

Internet

a computer network consisting of interconnected networks that use standardized, open (nonproprietary) communication protocols

World Wide Web

a system of linked pages, programs, and files

Digital Divide

differing access to computing devices and the Internet, based on socioeconomic, geographic, or demographic characteristics