What is an overflow in binary addition?

Binary Overflow Chapter 2 - Binary Arithmetic One caveat with signed binary numbers is that of overflow, where the answer to an addition or subtraction problem exceeds the magnitude which can be represented with the alloted number of bits. read more

Binary values are in 2s Complement form. If I am to add 110001 (-15) and 101110 (-18), and the answer has to be stored in a 6-bit integer, is this an underflow/overflow. read more

When you add two n-bit binary numbers (the cars), and the resulting sum doesn’t fit into the range of numbers that can be represented by n-bits(the garage volume); an overflow occurs. For instance consider, a 4 bit unsigned representation of decimal numbers in Binary. read more