Business Data Processing 2019 – BSc Computer Science Part 2

Note: Attempt five questions. All questions carry equal marks. Question No. 1 is compulsory.

1. (a) Define a business system and its Environment.

(b) What are various information system needs, explain ?

2. (a) Define the role of making personnel.

(b) What is cost/benefit analysis, explain ?

3. (a) Define system maintenance, also write importance of its review.

(b) Compare sequential and indexed sequential files.

4. Write a program in COBOL to add two numbers.

5. (a) What is DBMS ? How it differs from flat files ?

(b) Compare indexed and direct access organization.

6. Explain following:

(i) Network Models

(ii) Relational Models

7. (a) How can one search an element into given record ? Explain.

(b) Compare multiple key retrieval and inverted file system.

8. Write short notes (any two)

(i) DDL and DML

(ii) Report writing in COBOL

(iii) Schema and subschema

……..End……..

Thank You!