Answer:
Usually based on IOS or Android operating systems. (Like what phones use. It's usually a simplified broken-down version of this though.)
Explanation:
Most small electronic devices such as the one listed runs on IOS or Android operating systems. Typically it's used for a basic use but it's a small, fast, and easy to use kind of OP.
Answer : Monitor may be in sleep/hibernate mode.
Can you post the answers plz