What is a variable in QBASIC?

Answer 1

Variables in Qbasic are divided into two groups. There are numerical variables

and string variables.

This is how you would use a numerical variable:

CLS

INPUT "Enter your first number"; num1

INPUT "Enter your second number"; num2

num3 = num1 * num2

CLS

PRINT "The product of the two numbers is"; num3

END

This example just has the user input 2 variables (num1 and num2)

and store them as numerical variables. Num3 is defined by multiplying

the two user-imputed variables. The text displayed with PRINT

contains normal text with a semi colon to display the result.

This is a string variable example:

CLS

INPUT "What is my name?"; name$

PRINT "Hi I'm"; name$

END

Instead of inputting just the variable name, you add a dollar sign

to signify that it's a string variable. String variables contain letters rather

than numbers. For string variables, you simply put the $ after the variable name every time it's used. Other than that, it's much like a numerical variable.

That's a basic outline of how the variables work. Manipulating the string variables is a different story.

Answer 2

A variable is a location in the memory , which has been assigned a name and it used to store data temporaily . It holds the value until another value is assigned to it .