Computer hardware is an essential part of any computer system. It refers to the physical components that make up the device, such as the processor, memory, hard drive, and other components. Without these components, the computer would not be able to function. The type of hardware needed for a given computer will depend on its purpose and the software applications it is running. For example, a gaming computer will need more powerful hardware than a basic word processing computer. It is important to know which components are necessary for the computer’s intended use in order to choose the best hardware for the job.