CLASS 7 : COMPUTER : DATABASE

 CLASS 7

COMPUTER

DATABASE

 

Write 'T' for True and 'F' for False statements:

 

1. A telephone directory is a manual database. True

2. A relational database contains many unrelated tables. false

3. Relational database was first propounded by IBM. False

4. FoxPro is a word processor. False

5. We cannot sort data in database. False

 

Fill in the blanks:

 

1. A Data file is a unit of information that may hold a collection of database record.

2. A Record is a part of a file.

3. A field is a part of a record.

4. A character is a part of a field.

5. A Hierarchical data base arranged in the  in the form of tree.

6. MS Access is a OBMS/RDBMS package.

 

Question and Answer:

 

1.What is the need of database?

Ans- The computers  are widely used, the need for Storing the databases in it has also increased Let uses see the uses of a databases and where all they are applicable.

• In School, to maintain the student' and teacher data.
• In library, to maintain the record of all books
• In hospital, to maintain the records of patients and medicines.
• In business, it helps us to maintain the employee records, Inventory control, payroll, management etc.
• Besides these, the databases are used for maintaining public records; like birth and death records voters list, etc.