Hardware refers to the physical components of a computer, including the central processing unit (CPU), memory (RAM), storage devices (such as hard drives or solid-state drives), input devices (such as keyboards and mice), output devices (such as monitors and printers), and any other components that make up the physical structure of the computer.

Software, on the other hand, refers to the non-tangible instructions and data that tell the hardware what to do. This includes the operating system, which manages the computer's resources and allows other software programs to run, as well as application software, which performs specific tasks or functions such as word processing, web browsing, or gaming.

In order for a computer to function properly, it needs both hardware and software. The hardware provides a physical platform for the software to run on, while the software provides the instructions and data for the hardware to execute. Without one or the other, a computer would not be able to perform any tasks.