4. Has a rigid cell wall made of peptidoglycan (except for the mycoplasma). This cell wall is thick in Gram-positive bacteria and thin in Gram-negative bacteria. It is the thickness of the peptidoglycan that accounts for the ability/lack of ability to retain the crystal violet used in the Gram stain.
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.
exists and is an alternate of . Hardware that makes up a computer system is:Case - The shell around the components. Motherboard - Where everything hooks in like the ram and cpu. PSU - Supply's power to the motherboard which then get supplied to the components. CPU - The main computer component that computers all the information to be displayed.