Which of the following is classified as hardware?

The classification of hardware refers to the physical components of a computer system or any tangible device used in conjunction with that system. Hardware encompasses items such as computers, printers, monitors, keyboards, and networking equipment. These devices are essential for the functioning of a computer and can be physically touched and interacted with.

In contrast, software, such as programs installed on a computer, is intangible and consists of instructions that tell the hardware what to do. Company policies and online services also fall outside the realm of hardware; they pertain to procedural or service-oriented concepts rather than physical devices. Thus, identifying hardware as any physical tangible device accurately captures the essence of what hardware is within the context of technology and computing.