| A | B |
| IsNumeric | A validation method used to check if a value is a number. |
| Short Circuiting | A method the computer uses to evaluate the first statement of an If Statement to decide whether it needs to evaluate the rest of the statement. |
| Game1 | The CS file that contains the game behavior. |
| Method | a named part of the program that performs a particular behavior(s). |
| Block | A way to lump statements together. |
| Braces | curly brackets ({}) used to enclose code. |
| Comments | Text in the program that is ignored by the compiler. |
| Clear | An XNA method that clears the screen to a specified color. |
| Draw | an An XNA method that draws objects on the screen. |
| Data Type | Value types stored in variables |
| Identifier | Name of variable |
| Class | A collection of abilities (methods) and data (variables) that forms part of a program. |
| Behavior | Something that a class can be asked to do. |
| Update | An XNA method that refreshes the activity of the game. |
| Members | Class-level variables that can be used by any methods in a game. |
| Bit | The smallest unit of data that you can have. |
| Algorithm | Provides a sequence of operations that is used to solve a problem. |
| Error | A mistake that prevents what you have written from being made into a program. |
| Warning | A mistake where the compiler thinks you might have done something wrong |