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APCSP CodeAI Unit 02
AP Computer Science Principles Code.org Unit 02 Vocabulary All Lessons
| Term | Definition |
|---|---|
| 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 | an agreed-upon set of rules that specify the behavior of some system |
| 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-of-order, or not at all |
| 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 |
| HyperText Transfer Protocol (HTTP) | the protocol used for transmitting web pages over the Internet |
| Domain Name System (DNS) | the system responsible for translating domain names like example.com into IP addresses protocols |
| 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 |
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