1. What is a database?
2. What is a primary key?
3. What are the advantages of a DBMS?
4. Explain software piracy.
5. Define the term: Moral
6. Define the term: Ethics
7. Give examples of data and information.
8. Explain functional units of a computer system.
9. Explain types of primary memory storage.
10. Explain how Linux is different from Windows.
Answers
Answer:
a) A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS). ... Most databases use structured query language (SQL) for writing and querying data.
b) A primary key is either an existing table column or a column that is specifically generated by the database according to a defined sequence. For example, students are routinely assigned unique identification (ID) numbers, and all adults receive government-assigned and uniquely-identifiable Social Security numbers.
c) Advantages
Reduced data redundancy.
Reduced updating errors and increased consistency.
Greater data integrity and independence from applications programs.
Improved data access to users through use of host and query languages.
Improved data security.
Reduced data entry, storage, and retrieval costs.
Answer:
1.A database is an organized collection of data, generally stored and accessed electronically from a computer system.
2.A primary key, also called a primary keyword, is a key in a relational database that is unique for each record.
3.Reducing Data Redundancy,Sharing of Data,Data Integrity,Data Security,Privacy,Backup and Recovery,Data Consistency
4.Software piracy is the unauthorized use, copying or distribution of copyrighted software.
5.the moral significance or practical lesson
6.Ethics, also called moral philosophy, the discipline concerned with what is morally good and bad and morally right and wrong.
8.Input unit, Central Processing Unit, Memory unit Arithmetic & logical unit, Control unit and an Output unit.