Which of the following is NOT a floating point data type?

The choice identified as "B" refers to the Byte data type, which is indeed not a floating point data type. A Byte is typically used to represent an integer value that ranges from 0 to 255 (if unsigned) or -128 to 127 (if signed). It consists of 8 bits and is particularly useful for storing small numbers or binary data.

In contrast, the other choices — Single, Float, and Double — are all used to represent floating point numbers, which are numbers that have a decimal component and can represent a wider range of values, including fractions.

• The Single data type usually defines a single-precision floating point value, allowing it to represent approximately 7 decimal digits.

• The Float (which is often synonymous with Single in many programming languages) also represents a 32-bit (single precision) floating-point number.

• The Double represents a double-precision floating point value, allowing it to store approximately 15 decimal digits.

Since Byte does not accommodate decimal values and is not involved in the representation of floating point numbers, it is the correct answer to the question regarding which is not a floating point data type.