Home Â» Directory Â» Missouri Â» Cape Girardeau County Â» Millersville Â» Millersville Rural Fire Protection District.
The word software is also sometimes used in a more narrow sense, meaning application software only. At the lowest level, executable code consists of machine language instructions specific to an individual processor âtypically a central processing unit (CPU).
If the operating system is the only software installed on the computer, then the computer can be powered on yet nothing can be done with it. This type of software is called system software. Application software, such as Firefox, are the programs that actually do anything useful to the end user.