AP Computer Science Vocabulary Flashcards
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| 8534628261 | Bit | Binary Digit, the single unit of information in a computer. |  | 0 |
| 8534628262 | Bit rate | the number of bits that are processed in a unit of time |  | 1 |
| 8534628263 | Protocol | A set of rules used for transmitting data. |  | 2 |
| 8534628264 | Router | a computer designed to receive and redirect packets of information based upon the addressing information (IP address) |  | 3 |
| 8534628265 | Packets | Small chunks of information that have been chunks of information formed from large chunks of information | 4 | |
| 8534628266 | TCP (Transmission Control Protocol) | Provides reliable, ordered and error checked delivery stream of packets on the Internet. |  | 5 |
| 8534628267 | DNS (Domain Name Service) | the service that translates URLs to IP addresses |  | 6 |
| 8534628268 | HTTP (Hypertext Transfer Protocol) | The protocol used for sending and receiving web pages -ASCII text- based protocol -At the same level as DNS |  | 7 |
| 8534628269 | Compression | Represents the same data using fewer bits | 8 | |
| 8534628270 | Pixel | the fundamental unit of a digital image a) short for picture element b) typically a tiny square or dot which contains a single point of color or larger image |  | 9 |
| 8534628271 | Metadata | data that describes other data a) Examples: size of number, number of colors, or resolution (how clear the image is) |  | 10 |
| 8534628272 | Internet Packet | The packet contains the data that needs to be sent, but also other data like the to and from address, and packet number. |  | 11 |
| 8534628273 | Lossless Compression | a data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data. | 12 | |
| 8534628274 | Lossy Compression | (or irreversible compression) a data compression method that uses inexact approximations, discarding some data to represent the content. Most commonly seen in image formats like .jpg. | 13 | |
| 8534628275 | Top Down Design Approach | A design process that begins by specifying complex pieces and then dividing them into smaller pieces. | 14 | |
| 8534628276 | Abstraction | Pulling out specific differences to make one solution work for multiple problems. -a mental tool that allows us to ignore low-level details when they are unnecessary. -this ability to ignore small details is what allows us to develop complex encodings and protocols. | 15 | |
| 8534628277 | Assumption | The information collected that gave us a false representation of data. | 16 | |
| 8534628278 | Digital Divide | the gulf between those who have ready access to computers and the Internet, and those who do not. | 17 | |
| 8534628279 | Programming Language | Instructional "code" where each has a precise, unambiguous meaning. |  | 18 |
| 8534628280 | Sequencing | Sequencing is the application of each step of an algorithm in the order in which the statements are given. |  | 19 |
| 8534628281 | Selection | Selection uses a [true-false] condition to determine which of two parts of an algorithm is used. |  | 20 |
| 8534628282 | Iteration | Iteration is the repetition of a part of an algorithm until a certain condition is met or for a specified number of times. In a computer program, a common form of iterations is a loop, which repeats code to determine values for multiple variables or sometimes just a single variable (adding up multiple values together). |  | 21 |
| 8534628283 | Algorithm | A precise sequence of instructions for processes that can be executed only by the computer. |  | 22 |
| 8534628284 | Function | a piece of code that you can call over and over again | 23 | |
| 8534628285 | API | a collection of commands made available to a programmer |  | 24 |
| 8534628286 | Documentation | a description of the behavior of a command, function, library, API, etc. |  | 25 |
| 8534628287 | Library | a collection of commands / functions, typically with a shared purpose |  | 26 |
| 8534628288 | Parameter | An extra piece of information that you pass to the function to customize it for a specific need. |  | 27 |