CHP1

Question 1

Difference between data and information

Answer 1

• data are raw facts and unprocessed information
• information are processed data and are meaningful. They are accurate, relevant, timely.

Question 2

Describe the difference between database and DBMS

Answer 2

• database is a collection of connected information about people, locations, or things.
• DBMS is a collection of programs that allow you to create, manage, and operate a database. It controls the creation and maintenance of a database.

Question 3

3 types of database

Answer 3

1. Single-user - Supports one user at a time
2. Desktop - Single user database on a personal computer
3. Multi-user - Supports multiple users at the same time

Question 4

Advantages of DBMS

Answer 4

• Possible to share data among multiple applications or users
• Makes data management more efficient and effective
• Probability of data inconsistency is greatly reduced