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APCSP Review
| Question | Answer |
|---|---|
| event-driven programming | a programming approach whereby the program's behavior is controlled by writing code that responds to various events that occur, such as Button clicks |
| abstraction | one of the seven big ideas of the CS Principles curriculum. An abstraction is a simplified and general representation of some complex object or process. |
| binary number | a number written in the binary system, a system that uses only two digits, 0s and 1s |
| bit | short for binary digit |
| Moore's Law | The number of transistors per square inch on integrated circuits has doubled every year since the integrated circuit was invented |
| algorithm | a formula or set of steps for solving a particular problem |
| analog | values as continuously variable physical quantities |
| ASCII | a code for representing English characters as numbers, with each letter assigned a number from 0 to 127 |
| digital | any system based on discontinuous data or events. Computers are digital machines because at the basic level they can distinguish between just two values, 0 and 1 |
| lossless compression | data compression techniques in which no data is lost |
| lossy compression | data compression techniques in which some amount of data is lost. This technique attempts to eliminate redundant information |
| encryption | the translation of data into secret code |
| metadata | data about data; describes how and when and by whom a particular set of data was collected, and how data is formatted |
| HTML | hypertext markup language, a standardized system for tagging text files to achieve font, color, graphic, and hyperlink effects on World Wide Web pages |
| URL | abbreviation of uniform resource locator it is the global address of documents and other resources on the World Wide Web |
| router | a device which forwards data packets to the appropriate parts of a computer network |
| ISP | Internet Service Provider a company that provides Internet connections and services to individuals and organizations |
| IP address | a label given to each digital device that is connected to the Internet |
| Fault Tolerant | Despite failures in connections, a system that allows for alternate direction of data to keep communication in tack |
| packets | small pieces of data formed from larger pieces sent over a network |
| bandwidth | The maximum amount of data that can be transmitted over a internet connection in a given period of time (speed) |
| latency | the delay between a sender application and the response to that action |
| TCP | Transmission Control Protocol as set of rules that allow computers to share data on a network such as the internet |
| DNS | Domain Name System a system that changes a domain name to an IP address to share data over a network. Domain Name Servers store IP addresses of domain names |
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