Computer hardware refers to the physical components of a computer system. These components include the central processing unit (CPU), memory, storage devices such as hard disk drives and solid-state drives, input and output devices like keyboards, mice, and monitors, and various other components like motherboard, power supply unit, and cooling systems. The hardware components work together to process data and perform tasks for the user. The quality of hardware components directly affects the performance and speed of the computer system. With advancements in technology, computer hardware is constantly evolving, with new and improved components being developed to meet the growing demands of modern computing.