
Computer hardware is the collection of physical elements that constitute a computer
system. Computer hardware refers to the physical parts or components of
a computer such as monitor, keyboard, Computer data storage, hard drive
disk, mouse, system unit (graphic cards, sound cards, memory,
motherboard and chips), etc. all of which are physical objects that you
can actually touch. In contrast, software
is untouchable. Software exists as ideas, application, concepts, and
symbols, but it has no substance. A combination of hardware and software
forms a usable computing system.
In computer science and engineering, computer architecture
is a set of disciplines that describes a computer system by specifying
its parts and their relations....