> For the complete documentation index, see [llms.txt](https://codeworkshops.gitbook.io/code-school-closure/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://codeworkshops.gitbook.io/code-school-closure/glossary.md).

# Glossary

## Algorithm

A general step by step process for solving a problem.

## Array

A collection of components, all of the same type.

## Argument

A variable or expression listed in a call to a function.

## Bug

An error in a program.

## Binary

A system of numbers using only the two digits 1 and 0

## Bit

Binary digit. A unit of information introduced by Shannon in the 1940''s. A single on/off binary position. 1 is on and o is off.

## Byte

Eight bits make byte.

## Block

program\_structure (A piece of source code that has one or more declarations in it.)

## Computer

A programmable device that can store, retrieve, and process data.

## Coding

The process of writing the programming language statements to create a computer program.

## Comment

Information in a program that is meant for you (the programmer) and does not get executed in the program.

## Data

Information in a form a computer can use.

## Declaration

A statement that associates an identifier with a data object, a function, or a data type so that the programmer can refer to that item by name.

## HTML

Authoring markup language used for creating webpages, multimedia documents on the web

## Function

Something that is called with parentheses, e.g., sqrt(). Specifically, A portion of code that is designed for one mini-task, e.g., draw a line, draw a square, compute the square root, or find the largest value. In Java, functions are called "methods".

## Editor

An interactive program used to create and modify source programs or data.

## Input

Data supplied to some program, subprogram, OS, machine, system.

## Iteration

An individual pass through, or repetition of, the body of a loop or steps in the program.

## Loop

A control structure that causes a statement or group of statements to be executed repeatedly

## Program

A sequence of instructions that specifies to a computer actions and computations to be performed.

## Programming language

A set of rules, symbols, and special words used to construct a computer program

## Statement

A command line that ends with a semicolon.

## Syntax

The structure of a program. The formal rules governing how valid instructions are written in a programming language.

## Variable

A location in memory, referenced by an identifier, that contains a data value that can be changed. A named place in a program that holds a value. e.g., integers (int), strings (string) and reals (float, double).