Unit 2

3. a system of linked pages, programs, and files.
5. a machine that can run a program, including computers, tablets, servers, routers, and smart sensors
6. An agreed-upon set of rules that specify the behavior of some system
10. a group of computing devices and programs working together for a common purpose
11. the maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second.
13. 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.
14. the protocol used for transmitting web pages over the Internet
16. the system responsible for translating domain names like example.com into IP addresses
17. a computer network consisting of interconnected networks that use standardized, open (nonproprietary) communication protocols.

1. a group of interconnected computing devices capable of sending or receiving data.
2. 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.
4. a protocol for sending data across the Internet that assigns unique numbers (IP addresses) to each connected device
7. The unique number assigned to each device on the Internet.
8. A type of computer that forwards data across a network
9. differing access to computing devices and the Internet, based on socioeconomic, geographic, or demographic characteristics
12. the series of connections between computing devices on a network starting with a sender and ending with a receiver.
15. 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.