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Browser

A browser is a program that displays web pages and is used to navigate the WWW.

World Wide Web

The WWW is an Internet application of interlinked web pages based on the HTTP protocol.

Internet

The Internet is the global public network of independent and autonomous networks that are governed by the Internet Protocol Suite (TCP/IP).

algorithm

An algorithm is a precise sequence of instructions for processes that can be implemented in a programming language and executed by a computer.

sequence

The sequence control structure is simple a sequence of one or more statements in a computer program

selection

In a selection structure, a question is asked, and depending on the answer, the program takes one of two courses of action, after which the program moves on to the next event.

repetition

A repetition structure, or loop, is used when a program needs to repeatedly process one or more instructions until some condition is met, at which time the loop ends.

control structure

A control structure is one or more programming language statements that control the flow of a computer program.

iteration

Another term for repetition (A repetition structure, or loop, is used when a program needs to repeatedly process one or more instructions until some condition is met, at which time the loop ends.)

Event-driven programming

In event driven programming, the program is activated by events such as button clicks

Event handler

A block of code that reacts to an event like a button click

input

Data sent to a computer for processing by a program and can be tactile, audible, visual or text.

Integrated development environment (IDE)

A software that provides comprehensive tools for programming such as UI design, code editing, and a way to interpret and run the program.

output

The data sent back from the program to the device and can be tactical, audible, visual or text.

program

Code statements or sequences of instructions to be executed by a computer to perform a task---- also called a software or an app.

Program function

Code statements or sequences of instructions to be executed by a computer to perform a task---- also called a software or an app.

User events

Actions made by the user such as button clicks.

User interface (UI)

The parts of a computer application through which a user interacts with a program

UI components

Parts of the user interface such as buttons labels, etc.

algorithm

A step-by-step procedures for solving a particular problem

Control structure

A block of programming statements that controls the flow or behavior of an algorithm

sequence

A sequence control structure is the application of each step of an algorithm in the order in which the statements are given.

selection

A selection control structure uses a true or false condition to determine which of the two parts of an algorithm is used.

repetition

A repetition control structure is the repetition of an algorithm for a specified number of times or until a true/false condition is met.

iteration

Is another term for repetition (A repetition control structure is the repetition of an algorithm for a specified number of times or until a true/false condition is met.)

boolean

A boolean condition is a true/false condition. It is named after George Boole an english mathematician.

psuedocode

A blend of english and code used to write down an algorithm for a program.

flowchart

A flowchart is a visual (i.e. graphical) notation for expressing algorithms.

Protocol

A protocol is a system of rules that govern the behavior of some system.

TCP/IP

TCP/IP (Transmission Control Protocol/Internet Protocol) is the suite a protocols that determine the behavior of the Internet.

HTTP

The HyperText Transfer Protocol (HTTP) is the set of rules that governs the WWW application.

Tim Berners-Lee

Tim Berners-Lee invented the World Wide Web (WWW).

WWW as a higher level of abstraction

Berners-Lee felt the WWW brought the Internet to a higher level of abstraction.

Open Standard

An open standard is a standard (such as TCP, HTTP) that is not owned or controlled by a private entity. It stands in contrast to 'proprietary' materials', which are owned or controlled by a private entity. Open Standards fuel the growth of the Internet!

IETF

The International Engineering Task Force (IETF) develops and oversees open standards such as HTTP (www) and SMTP (mail).

computing innovation

includes a program as an integral part of its function. A computing innovation can be physical, non-physical computing software, or non-physical computing concepts. For example, self-driving cars, picture editing software, e-commerce, a mobile app

Program purpose

The problem a program is intending to solve or the creative interest being pursued by a program. Why the program is being written.

if/else

Selection or conditional algorithm that allows a program to choose between different actions.

UI components

Parts of the user interface such as Buttons, Labels, etc.

Horizontal arrangements

A component used to display a group of components laid out from left to right.byte

byte

One byte is 8 bits.

compilation

The process of translating the entire source code into a single binary file.

CPU

part of the computer's hardware that interprets and runs the computer program.

General Purpose Computer

one that can run many different programs (e.g. a smartphone).

hardware

A computer's hardware includes its electronic and mechanical components that carries out the instructions of a computer program.

high level language

A high level language is a programming language that is human readable (App Inventor) and provides the programmer with easy to understand abstractions.

interpretation

The process of translating source code into machine language one instruction at a time and immediately executing instruction.

machine language

A machine language is a programming language that is directly readable by the computer’s CPU.

motherboard

The motherboard houses the computer's main electronic components.

program

Code statements or a sequence of instructions to be executed by a computer to perform a task. Also called software or an app.

ram

stores the computer's programs and data temporarily while power is on.

software

consists of the programs that control the computer.

Special purpose computer

A special purpose computer is one that has a fixed program (e.g. a simple calculator, a digital watch, a car's anti-lock braking system).

abstraction

a general representation of something -- of some person or place or event or process. An abstraction extracts common features from specific examples in order to generalize concepts. Words, symbols, maps, and models are all examples of everyday abstractions.

abstracting

the process of creating abstractions

constant

such as the numeral '5', is an abstraction that represents a single thing, e.g., the value 5.

procedural abstraction

provides a general way to access a collection of data.

variable

names a memory location to hold different values in your program.

data abstraction

provides a general way to access a collection of data.s