Computer Instructions
ROM, or Read Only Memory is used to store instructions as it retains memory even after power loss.
(B) reporting additional cash found in the cash register
Answer:
Memory-mapped I/O and port-mapped I/O are two complementary methods of performing input/output between the central processing unit and peripheral devices in a computer. An alternative approach is using dedicated I/O processors, commonly known as channels on mainframe computers, which execute their own instructions.
Answer= background
Appearance of the laptop is called theme, it is also related to background
