Answer:
Hold the CPU fan so that it won't spin and blow this with compressed air.
Explanation:
While cleaning the computer system from the inner side then we have to follow some steps.
- Firstly, shut down the system properly and remove it from the power supply.
- Then, open the cabinet of the computer system.
- Then, clean the internal parts of the system through simple air pressure and hold the CPU fan during that time to avoid spinning.
- Clear the dirt layer using the can of compressed air over the cabinet fans.
Answer:
Webcam
Explanation:
A webcam is mainly used for taking images or videos from the computer. the webcam is a combination of two basic words i.e. web and camera. webcam can be connected to any computer via USB. It can be mounted on the desktop and sometimes it comes inbuilt on the laptops.
A webcam is also used for face recognition function to login to a computer system.
so according to the scenario, the most appropriate answer is a webcam.
Answer: E. Never
geometric average return can NEVER exceed the arithmetic average return for a given set of returns
Explanation:
The arithmetic average return is always higher than the other average return measure called the geometric average return. The arithmetic return ignores the compounding effect and order of returns and it is misleading when the investment returns are volatile.
Arithmetic returns are the everyday calculation of the average. You take the series of returns (in this case, annual figures), add them up, and then divide the total by the number of returns in the series. Geometric returns (also called compound returns) involve slightly more complicated maths.
The header is not a main part of the email.
