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Hardware encompasses the physical components of a computer system that enable it to function and perform tasks. Key types of hardware include the central processing unit (CPU), which serves as the brain of the computer by executing instructions and processing data; memory (RAM), which temporarily stores data and instructions that the CPU needs to access quickly; storage devices such as hard disk drives (HDDs) and solid-state drives (SSDs), which provide long-term storage for data and programs; input devices like keyboards and mice, which allow users to input commands and data into the computer; output devices such as monitors and printers, which display information and produce tangible outputs based on computer processing; and networking hardware like routers and network cards, which facilitate communication between computers and across the internet. Understanding the role and capabilities of different types of hardware is essential for effectively using and maintaining computer systems in various personal, educational, and professional settings.