My class Lecture #2 about Introduction to Information System

1. 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.