Why would your workplace monitor your computer use?

There are many reasons why; but, the main reason would be that the computer is a company resource and uses other company resources (such as bandwidth). It makes sense to monitor usage to ensure that it is in compliance with company rules, legal restrictions, etc.

Protection of Personal Health information

Use data to support decisions however, be mindful of collection methods that invalidate results. Behavior controlled input such as computer usage monitoring can skew outcomes.

Unless you work with classified data you shouldn’t. If you do, it’s because you make poor hiring decisions or are incapable of empowering your people.

This is another very common thing. Company's want their employees working 4 the company, not playing games, etc. Just think about that...

Usually its a lack of trust. They either have reason to believe there isn't a focus on responsibilities, or they have had experiences in the past with others they are trying to avoid. It may not necessarily be you! Depending on your role, there could be compliance issues as well that require them to monitor your activity. In our business we are required by the state to record and monitor certain employees with specific responsibilities. Outside of those areas, my first thought is simply a lack of trust in the employee. The good news is that if that's the case, it can be gained with a conversation with your manager and a request for a little more trust and confidence. People want to trust their employees. I know I do.

If your work/stats drop. The company would want to know why.

Fear. They lack trust in employees and are protecting investors etc.