Which of the following is not an example of computer hardware?

The correct answer identifies Excel as the option that is not an example of computer hardware. Hardware consists of the physical components of a computer system that you can touch and see, such as the hard drive, motherboard, and keyboard. Each of these elements plays a critical role in the operation of a computer.

Excel, on the other hand, is software – specifically, a spreadsheet application that allows users to perform calculations, organize data, and create graphs and charts. It operates within the physical environment established by the hardware but does not represent a physical component itself. Understanding the distinction between hardware and software is essential, as it lays the foundation for working effectively with computer systems in both everyday tasks and more complex technical environments.