The answer is a POST Diagnostic Card.
Although not a necessity, a POST card can help discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system. To be able to understand how a POST card works, one needs to be very familiar with the BIOS. The power-on self test (POST) is a series of various tests performed by a computer when you turn it on. If you have any issues that conflicts with the operating system and prevents the computer from booting, you can install a POST card in the available expansion slots. This card will monitor the entire boot process and report errors in coded numbers on a small LED panel on the card.
Answer: Computers as target
Explanation:
Whenever an authorized access is made into a system it is a form of crime and it is called computers as target whereby one is able to access the system and get hands on unauthorized data and can also manipulate various activities which will have many dangerous effects.
Ask your mobile operator
2.go to hrs service
3. Turn on and turn off
Answer: All of the above
Explanation:
All the above listed point serves as security measures to safeguard our computing devices and systems.