COMPUTER PROGRAMMING FUNDAMENTALS
WHAT IS PROGRAMMING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A named value in a program that always stays the same, eg the value for pi.
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A character in a game, eg Scratch the cat.
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A background in a game, eg a range of mountains.
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A named value that can change throughout the program, eg a timer or a score.
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Detailed explanation-1: -What is a variable? In programming, a variable is a value that can change, depending on conditions or on information passed to the program. Typically, a program consists of instruction s that tell the computer what to do and data that the program uses when it is running.
Detailed explanation-2: -A variable is a quantity that may be changed according to the mathematical problem. The generic letters which are used in many algebraic expressions and equations are x, y, z. In other words, a variable is a symbol for a number where the value is not known. For example, x + 5 = 10. Here “x” is a variable.
Detailed explanation-3: -An experimental inquiry typically has three main types of variables: an independent variable, a dependent variable and controlled variables.
Detailed explanation-4: -Answer. A variable is a memory space that is used in programs to store values ad change them at run time. Yes. We can change its value at run time.