1.
In computer systems, ~ refers to the machines themselves as opposed to the programs which tell the machines what to do. Compare software .
N-UNCOUNT
2.
Military ~ is the machinery and equipment that is used by the armed forces, such as tanks, aircraft, and missiles.
N-UNCOUNT: usu adj N
3.
Hardware refers to tools and equipment that are used in the home and garden, for example saucepans, screwdrivers, and lawnmowers.
N-UNCOUNT