Showing posts with label information systems. Show all posts
Showing posts with label information systems. Show all posts

What is information processing cycle? 4 phases of information processing cycle?


Information Processing Cycle:

The task of computer, in low level, is to process given data to produce information. Computer takes data, then processes the data as per being instructed and then can either output the generated information to user or store the information to storage or can do both. The generated information can be treated as data in the next cycle. These operations are part of a process called Information Processing Cycle which is a set of steps that computer follow to receive data, process the data and then either display the output to user or store the output to storage or do both.

Explain evaluation of information systems.


Evaluation of Information Systems

The measurement of the efficiency of information systems is the evaluation of information systems. The evaluation of information systems depends on the amount of efficiency in workflow and management an organization achieved by implementing an information system. Evaluation of information systems is measured based on a few criteria as follows:

  1. Dependency of Information
  2. Availability of Information
  3. Support in Business Operation
  4. Help to Survive in Competition
  5. Reduce Uncertainty
  6. Value and Cost of Information
  7. Presentation of Information
  8. Accuracy of Information
  9. Verification and Validation of Information

What are the types of information systems? Explain.

An organization's management generally includes one or more levels depending on the size of the organization and it's managing areas. Different types of information systems are required for different purposes of these levels. However, information systems can be categorized as follows,

  1. Operations Support System
    1. Transaction Processing
    2. Knowledge Work
    3. Office Information
  2. Management Support System
    1. Management Information
    2. Executive Support
    3. Decision Support

What are the roles of computer in Information System?


Roles of Computer in Information Systems

Information systems are in use from an ancient time. With the development of computing technology, computers became an important part of today's modern information systems which satisfies speed, dependability etc. 

Following are the roles of computers in Information Systems
  1. Data Collection
  2. Data Verification
  3. Data Processing
  4. Data Storing
  5. Information Supply
  6. Information Presentation
  7. Data Updates
  8. Security of Data
  9. Information Sharing
  10. System Automation

What is information systems? What are the components or resources of information systems?

Information Systems Definition:

Systems that collect, verify, store, process, report and update data to output valuable and useful information are called information systems. Information systems are being used from ancient time period. With the development of computing technologies and it's uses, modern information systems are computer based information systems which can process billions of data to output desired information in seconds or minutes. Various types of computer based information systems are available.