In programming, what is a variable?

Question

BlackTom AI · Accepted Answer

First, restating the question and options helps frame what we’re evaluating.
Question: In programming, what is a variable?
Answer options:
- It is a go-between for programming code and machine language.
- It is the actual data that is stored by the computer.
- It is a type of information that is stored on the computer.
- It is a name given to a specific storage area in the Random Access Memory (RAM).

Now, let’s analyze each option individually.
Option 1: 'It is a go-between for programming code and machine language.' This description sounds like an interpreter, compiler, or translator role in some contexts, or possibly a conceptual bridge, but it doesn’t define a variable. It misplaces the variable’s core function, which is not to translate code but to hold data.
Option 2: 'It is the actual data that is stored by the computer.' This describes data itself, not the mechanism used to refer to or manage it. A variable is a named container for data, not the data value itself. So this option confuses the container with its contents.
Option 3: 'It is a type of information that is stored on the computer.' This is vague and broad; it could refer to data types or files in general. A variable is not simply a type of information; it’s a named storage location that can hold data of a certain type during program execution.
Option 4: 'It is a name given to a specific storage area in the Random Access Memory (RAM).' This captures the essential idea: a variable is a symbolic name that references a particular memory location where a value can be stored and retrieved during the program’s run. It emphasizes the naming and the storage area aspect, which aligns with standard programming definitions.

In summary, Option 1 misidentifies the role of a variable, Option 2 confuses the data with the container, Option 3 is too broad and imprecise, and Option 4 precisely describes a variable as a named storage area in RAM that holds a value for a program to use.

In programming, what is a variable?单项选择题

类似问题

A variable associates a name with a value in memory, making it easy to remember and use the value later in a program.

Which of the following is the correct way to define a variable in Python?

Which one of the following statements about variables is false?

A variable associates a name with a function, making it easy to remember and use the value later in a program.

Fill in the blanks in the statements below: A variable is a/an [ Select ] acronym statement expression symbol that represents a location [ Select ] in your imagination on the keyboard in the code in memory that contains a/an [ Select ] line of code assignment statement value symbol .

Chang created the following script using Scratch.Which of the following is an example of a variable used in the script.

Which of the following can a variable in Scratch hold?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单