Floating point
Real numbers in binary have to be stored in a special way in a computer. Computers represent numbers as binary integers (whole numbers that are powers of two), so there is no direct way for them to represent non-integer numbers like decimals as there is no radix point. One way computers bypass this problem is floating-point representation, with "floating" referring to how the radix point can move higher or lower when multiplied by an exponent (power).