1. Information Technology
Defined1: It is science which is concerned with the technologies used for converting the data into information and communicating the information from one location or from one level of management to other level of management.

2. IT Defined It is science concerned with Acquisition of data
Processing of data
Storage of data
Dissemination of data

3. Processing Technology
IT Defined2: It is a science which is concerned with the study of followings technologies
Input Technology
Conventional input devices, Automated Input Devices
Software Interfaces etc
Output technology
Output devices like HD, FD, CD etc
Printed report, on screen reports
Processing Technology
Processing hardware (Physical device)
Processing software (OS, Application software)
Network Technologies
LAN technologies
WAN Technologies

4. IT Defined3:
IT can also be defined as the convergence of Computing technologies and telecommunications.

5. Data & Information Data collected Facts Inactive Technology oriented
It could be collected from various sources
Presented facts
Active
Business bases
Transformed from data

6. Features of Good Information
Availability
Correctness
Completeness
Compactness
Verifiability
Collected from credible source

7. Types of Information ( Levels of Mgmt)
Operational Information
Tactical information
Strategic Information

8. Operational Information
Short run oriented
Task oriented
Day to day routine operation oriented
Quantified
Degree of accuracy is high
Internal focused
Structured
Detailed

9. Tactical Information Mid range oriented Decision orientation
Presented information in the form of reports
Semi structured
It would be in the form quantitive and qualitative form
Internal
Degree of accuracy is low as compared to operational information
It contains less details as compared to operational information

10. Strategic Information
Future oriented
Strategic decision orientation
Summarized reports
unstructured
It would be in the form qualitative form
External environment focused
Uncertainty
Highly summarized

11. System defined:
It is organized collection of men, machines, mechanisms organized to perform some specific function or to achieve some objective.
Information System defined:
A CBIS which accepts the data as input and process it for transforming it into the information and then communicate it to the management.

12. Difference Between Open & Closed System
Open System
Closed System
It interact with its environment for inputs & Out puts
It would be compatible with the other systems
Its output cannot be easily estimated probalistic System)
Flexible system
It does not interact with its environment for inputs & Out puts
It would be compatible with the other systems
Its output can be easily estimated (Deterministic System)
Rigid system

13. Components of a System:
Inputs (Resources or raw material on which the system operates)
Outputs ( Results of operation of process)
Process ( transform input to output i.e. tasks performed on input to convert it into output)
System Boundary
System Environment
Feedback

14. Write the components of following Systems
Inventory Control System
Payroll System
SKANS Student Information System

15. Features of System Organization Objectivity Interdependence Hierarchy
System optimality
Sub optimality

16. System Hierarchy defined:
It is an arrangement of items (objects, names, values, categories, etc.) in which the items are represented as being "above," "below," or "at the same level as" one another.
Features of System Hierarchy
A system is composed of sub systems
It is always possible to find another system of which that system is part
The system at higher position is call higher level system and system at lower position is called system at lower level system

17. Exercise for Information Types
Sales Invoice/Receipt
Sales Analysis Reports
Student Fee deposit Voucher
Edit Reports/Control Report
Financial Reports
Forecasting Reports
Trend Analysis Reports
Company Policies
Company Mission Statement
Company Objectives
Organizational Strategies
Company Budget
Short Run & Mid range Plans
Mergers & Acquisitions