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Unit 2 Vocabulary

Internet A network of independent networks that connects devices and computers around the world
World Wide Web A system of interlinked hypertext documents invented by Tim Berners-Lee
Protocol A system of rules that govern the behavior of some system.
TCP/IP The suite of protocols that determine the behavior of the Internet
HTTP The protocol that controls the behavior of the Web.
Tim Berners-Lee Invented the World Wide Web
User Interface (UI)
High Level Language A programming language that is human readable (App Inventor) and provides the programmer with easy to understand abstractions.
Special Purpose Computer A computer that has a fixed program
Control Structure A block of programming statements that controls the flow or behavior of an algorithm.
Algorithm A precise sequence of instructions for processes that can be implemented by a programming language and executed by a computer
Sequence The application of each step of an algorithm in the order in which the statements are given.
Repetition The repetition of part of an algorithm for a specified number of times or until a true/false condition is met
Iteration Another term for 'repetition'.
Selection Uses a true or false condition to determine which of two parts of an algorithm is used
Pseudocode More precise that ordinary English but less formal than a programming langauge
Boolean A true/false condition. It is named after George Boole (1815-1864) an English mathematician.
Flowchart A visual (i.e. graphical) notation for expressing algorithms
Created by: CaraNorton