Here are the answers to your questions:
1. A management information system (MIS) is a computer-based system that provides information to help managers at different levels to perform their routine tasks and make strategic decisions.
2. The MIS database stores data provided by the accounting information system. In addition, both data and information are entered from the organization's external environment. The database contents come from various internal and external sources of the organization.
3. The two types of MIS software are:
- Report writing software that produces periodic and special reports
- Mathematical models that simulate various aspects of the organization's operations
4. The different types of reports in MIS are:
- Periodic reports prepared on a scheduled basis