Hello dude as you want the Previous Years Question Paper of Tamil Nadu Open University B.C.A First Year Exam so here I am providing you the same please have a look..

1. What is meant by system software? Explain briefly.
2. What are the hidden files of DOS? Discuss.
3. Distinguish between Simplex, Half Duplex and Full Duplex Communication.
4. Name any two antivirus softwares and compare their features.
5. What are the secondary storage devices? Explain briefly.
6. What is the use of folders? Explain with an example.
7. Write short notes on formatting text in word files.

PART B
Candidates with enrolment number starting with A4BCA and C5BCA should answer any FOUR from the questions 8 to 13 and all others should answer any FIVE from the questions 8 to 14 in part B.
8. Explain the main components of a computer system with a diagram.
9. Explain in detail the memory hierarchy.
10. What is cryptography? Explain.
11. Bring out some of the techniques used by the intruders to break the password.
12. Discuss the important features of MS-Word.
13. Explain how to protect an Excel file by giving a password using the available options.
14. Highlight the features of Microsoft Power Point.