Question

Find out the types of variables in a computer.

Answer 1

Answer:

Not entirely clear what you mean here. In general, types and variables are concepts in a programming language that you're working with instead of a computer.

Explanation:

If you're referring to machine code, this simple works at the bit-wise level and doesn't actually have any types. Types are again, a feature that is really implemented at the language level. The only difference might be the size (32 bit integer vs 64 bit integer, etc.)

Answer 2

Variables are used for storing information which is to be referenced and altered in a computer program.

There are five types of variables in a computer: Constants, global variables, class variables, instance variables, and local variables.

• Constants are declared by capitalizing each letter in the name of the variable, per Ruby convention. They are used to store data that are never required to change.

• Global variables are declared with the start of the variable name with the dollar sign ($)

• Class variables are declared with the start of the variable name with two (@) signs.

• Instance variables are declared with the start of the variable name with one (@) sign.

• Local variables are declared with the start of the variable name with neither ($) nor (@) and not even capitalizing the entire variable name.

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