Main program to control the whole computer is a system software, also called operating system. But to understand what any single device says a system software needs small program called a device driver, which is particular for each single device. A device without a driver driver can't properly work with a computer.
The special instructions that control the activities of a computer are called programs. A program is a series of instructions written in a way the computer understands.
That would be called a "Operating System"
A group of programs that coordinate and control the resources of a computer system is called a system software. In other publications, it also includes software development tools like a debugger, linker or compiler.
control panel
In order to know the number of software programs installed in your computer, navigate to the control panel. On the control panel, click on Programs and Features. The next dialogue box will list the installed software programs.
The group of programs that controls how your computer operates are called the operating system
System software
there called Icon's - which represent software programs or hardware you can access on your computer
If you are a computer Administrator you can modify the programs. Unlike any other account you can preform downloads ,add or remove programs ,and etc. Basicly you are in control
hard drives
The instructions for a computer are called programs.
By going to Add or Remove Programs in control panel.