Lecture #1 - Introduction to Information System
- 2. A combination of Hardware Software Infrastructure and Trained personnel organized to facilitate Planning Control Coordination and Decision Making in an organization.
- 3. Executive Support System (ESS) Management Information System (MIS) Decision Support System (DSS) Knowledge Management System (KMS) Transaction Processing System (TPS) Office Automation System (OAS)
- 4. An Executive Support System ("ESS") is designed to help senior management make strategic decisions.
- 5. A management information system (“MIS”) is mainly concerned with internal sources of information and summarizes it into a series of management reports.
- 6. Decision-support systems ("DSS") are specifically designed to help management make decisions in situations where there is uncertainty about the possible outcomes of those decisions.
- 7. Knowledge Management Systems ("KMS") exist to help businesses create and share information.
- 8. Transaction Processing Systems ("TPS") are designed to process routine transactions efficiently and accurately.
- 9. Office Automation Systems are systems that try to improve the productivity of employee who need to process data and information.
- 10. Basically there are 5 components available. Hardware Software Data Procedures People
- 11. The term hardware refers to machinery. This category includes the computer itself, which is often referred to as the central processing unit (CPU), and all of its support equipments.
- 12. The term software refers to computer programs and the manuals (if any) that support them.
- 13. Data are facts that are used by programs to produce useful information.
- 14. Procedures are the policies that govern the operation of a computer system.
- 15. People mean the end user of the Systems. Every CBIS (Computer Based Information System) needs people if it is to be useful.