Computer Hardware denotes the physical components of a computer system while the term computer software is used to specify the operating system and various applications that make it possible to access, store and process the information. While these applications and operating system are frequently modified to improve the performance of a computer system, the hardware components are not replaced unless they malfunction or completely outdated due to rapidly changing technology. The term software is used to represent something which can be easily created, modified or removed from the system. On the other hand, the term hardware pertains to the solid components of a computer which cannot be changed or modified without entirely replacing them.
When we talk about Computer Hardware, you are more likely to perceive the image of internal components of a personal computer in your home or school. However, computer hardware is a much broader term, incorporating every machine that uses electrical components and digital technology. You will be surprised to know that only 0.2 percent of manufactured microprocessors are sold to be used in personal computers. The majority of chips or microprocessors are used in electronic gadgets like CD or DVD players, mobile devices, automobiles, microwave ovens and other durable consumer electronic equipments. So, think how many gadgets in your home or school use computer hardware?