Computer hardware is the physical parts or components of a computer, such as the monitor, mouse, keyboard, computer data storage, hard disk drive (HDD), graphic cards, sound cards, memory, motherboard, and so on, all of which are physical objects that are tangible.
Staple food is the name for a food that can be stored easily, and eaten throughout the year.Different kinds of staple food are used in different parts of the world (In Italy a staple food is pasta, as it can last for a long time).taple food is the name for a food that can be stored easily, and eaten throughout the year.
If you describe something as the mainstay of a particular thing, you mean that it is the most basic part of it. Fish and rice were the mainstays of the country's diet. American English: mainstay