Long description

A square box has four horizontal partitions, where the lowest or fourth partition is highlighted and labeled Hardware. The third partition is labeled Operating system and categorized as Kernel mode. The second partition is labeled User interface program. The first partition is with three highlighted circles labeled Web browser, E-mail reader, and Music player from left to right. The first and second partition is categorized as User mode. The first, second, and third partitions are categorized as Software.