Software may be defined as that part of a computer system that cannot be physically touched, unlike hardware. Software may be divided into two major branches:
1)System software. This includes three divisions
(a)Operating systems - An operating system is a piece of software that controls the computer's hardware and software.
(b)Utilities - These are (usually) small programs that perform one or few special tasks (e.g. "file management" - in windows this performed by "windows explorer") Some utilities are quite large, virus checking/ cleaning package - an example would b…
