Answer:
D
Explanation:
because it is a administrative procedure
Manage the computer's resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.
Answer:
Most displays in current use employ cathode ray tube ( CRT ) technology similar to that used in most television sets. The CRT technology requires a certain distance from the beam projection device to the screen in order to function.