Concept:The physical parts of a computer that can be seen and touched are called hardware.
Explanation:Computer hardware includes the tangible components like the monitor, keyboard, central processing unit, and motherboard.
These parts make up the physical structure of a computer system.
Software, in contrast, refers to the programs and instructions that run on the hardware.
Hard disk and floppy disk are specific examples of hardware, but they do not name the whole physical component category.
Therefore, the correct term for the physical component of a computer system is hardware.
Answer:B. hardware