When programming, we store the variables in our computer's memory, but the computer has to know what kind of data we want to store in them, since it is not going to occupy the same amount of memory to store a simple number than to store a single letter or a large number, and they are not going to be interpreted the same way.The memory in our computers is organized in bytes. A byte is the minimum amount of memory that we can manage in C++. A byte can store a relatively small amount of data: one single character or a small integer (generally an integer between 0 and 255). In addition, the computer can manipulate more complex data types that come from grouping several bytes, such as long numbers or non-integer numbers.Next you have a summary of the basic fundamental data types in C++, as well as the range of values that can be represented with each one:Name Description Size* Range*char Character or small integer. 1byte signed: -128 to 127 unsigned: 0 to 255short int (short) Short Integer. 2bytes signed: -32768 to 32767 unsigned: 0 to 65535int Integer. 4bytes signed: -2147483648 to 2147483647 unsigned: 0 to 4294967295long int (long) Long integer. 4bytes signed: -2147483648 to 2147483647 unsigned: 0 to 4294967295
C++
Topic: Variable
Explain about Fundamental data types ?
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Explain about Variables Data Types ?
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