Computer Hardware - take the quiz

What is this component ?

ram

rom

hard disk

{"name":"Computer Hardware - take the quiz", "url":"https://www.supersurvey.com/Q8QSD3M68","txt":"What is the most common type of computer memory?, What does CPU stand for?, How many bits are in a byte?","img":"https://www.supersurvey.com/3012/images/ogquiz.png"}