Digital Technologies and Information Systems Quiz

Data, Information, and Information Systems

• Data must be processed to generate useful and meaningful information
• Information is the required result obtained from processing data
• Information is nothing but “The Processed Data”
• Data is important because it forms the foundation for Decision Making
• Taking decisions based on incomplete or incorrect information may badly affect the outcome

Information Systems

• An information system maintains details of all the students enrolled in the school
• The Indian Government's project to issue unique identity numbers to each citizen is called Aadhar
• The passport office maintains details of the issued passports
• A medical representative maintains medical history of each patient
• The transport department maintains details of passengers

Database Management

• A database is a collection of related data items stored in an organized manner
• A well-arranged database makes searching easier as and when required
• The underlying structure of a database is known as its schema
• Data models include hierarchical, network, and relational data models
• To work with a computerized database, one must first define and create a table
• Basic tasks like adding, editing, and removing data are performed regularly to keep the database up-to-date

Digital Technologies and Information Systems

• In the current scenario, almost all data is stored and managed electronically
• Day-to-day transactions in small and medium enterprises are recorded in systems termed as manual systems
• Systems like search engines, reservation systems, and online banking are examples of systems used by millions of users simultaneously
• Information systems today have become a strong helping hand in taking decisions
• Users expect accessibility in accessing data from anywhere, at any time
• Perfect decisions depend on the accuracy of information available
• Information is the output generated through processing of raw data
• Data may be written, oral, computerized, or non-computerized