| A | B |
|---|
| QBasic programs process data into meaningful results using | Commands and Data |
| data that remains the same as the program runs (executes) | constant |
| numbers included in a statement; real & integers numbers | numeric constants |
| 4. Fractions must be written | in decimal form |
| If a number has no sign the computer assumes it is | positive |
| By default QBasic assumes that all variables | single-precision |
| any combination of letters, numbers or special characters | alphanumeric data |
| character string must be enclosed in | double quotation marks |
| maximum length of a string | 32,767 |
| a storage location in your computer that holds values | variable |
| can be from one to forty characters long; must begin with a letter; cannot have spaces in them | variable names |
| begins with a letter followed by letter or digits and must end with a dollar sign | string variable |
| reserved words that have a predefined meaning | keywords |
| everything is erased from the computer monitor | CLS |
| used to document the program | REM |
| assignins a value to a variable | LET |
| Do not place __ in values you assign to variables | commas |
| sends to the screen whatever is to the right of the word | PRINT |
| catches many of the syntax errors | smart editor |
| on-line help | F1 |
