| A | B |
|---|
| boolean variable | a variable that can only have two values, true and false |
| constant | stores data that remains the same throughout a program's execution |
| data type | a specification that defines the type of data that can be stored in a variable or constant |
| declaring | indicating to the compiler what type of variable you want and its name or identifier |
| exponential notation | a method of representing very large and very small numbers (also called scientific notation) |
| floating-point unit | a processor that works with floating-point numbers |
| identifier | names given to variables and constants |
| initialize | to assign a value to a variable for the first time |
| keyword | words that cannot be used as identifiers because they are part of the C++ language |
| string | a group of characters put together to make one or more words |
| unsigned | capable of storing only positive values |
| variable | holds data that can change while the program is running |
