How a computer works
A drive is a piece of software that allows you to to connect to a printer or hide drive without it it wont work.
What's In a CPU?
A touch screen is screen when you don't need a mouse that the user can control through by touching the screen with a special stylus/pen and-or one or more fingers.
Introduction to Operating Systems
Computer software, or simply software is any set of machine-readable instructions that directs a computer's processor to perform specific operations. Computer software contrasts with computer hardware, which is the physical component of computers. Computer hardware and software require each other and neither can be realistically used without the other.