First Semester BCA Degree Examinations BCA 104 Introduction to Computers (2007 Admission onwards)mg university

Time : 3 hrs Maximum : 75 marks

                                            PART A

(Answer any Ten questions, Each question carries 3 marks)

1. Distinguish between hardware and software.
2. List out advantages of high level languages.
3. Why ROM is necessary for a computer system ?
4. What is OCR ?
5. What is meant by refresh rate of a monitor ?
6. What is the difference between impact and non impact printers ?
7. What is meant by an instruction cycle ?
8. What is a Cache Memory ?
9. What is booting ?
10. What is formatting ?
11. Define an operating system
12. What are Computer Viruses ?

                                      PART B

( Answer all questions, Each question carries 9 marks)

13. With a neat sketch explain the various parts of a Computer System ?
OR
14. Explain the advantages and disadvantages of different categories of Computer Languages.
15. Explain various optical input devices
OR
16. Explain the various factors that affect the display of a monitor.
17. Explain the different types of character representation schemes used in computer
OR
18. Discuss the various factors affecting the processing speed of a computer system
19. Explain how does OS find data on a disk
OR
20. Explain how data is written into and read from a CD – ROM

 21. Explain the major uses of interest
OR
22. Discuss the threats to hardware and data in a computer system