DOEACC NIELIT O Level A1 R4 January 2010 Part Two Question Answer Sample Model Paper
DOEACC NIELIT O Level A1 R4 January 2010 Part Two Question Answer Sample Model Paper. O Level January Previous Year 2010 Sample Model Question Answer Part Two.
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PART TWO
(Answer any FOUR questions)
Q.5. (a) What are the five basic operations performed by any computer system? Draw a block diagram to illustrate the basic organization of computer system and explain the function of various units.(b) What is cache memory? How is it different from primary memory?(c) What are registers in a computer system?(d) Discuss the methodology used for creating special effects in movies?Q.6. (a) What is the role of “Disk Cleanup” and “Disk Defragmenter” in Windows?(b) Explain, what are the key advantages of Linux over Windows? What are its deficiencies?(c) What is an Operating System? What are the three main purposes of an Operating System?Q.7. (a) Explain the different types of alignment available in MS-Word.(b) What are the keyboard commands for the following operations in MS-Word?(i) To bold the text(ii) To save a file(iii) To underline the text(iv) To increase the font size(v) To paste the text from clipboard(vi) To run spelling and grammar| A | B | |
| Formula | Result | |
| 1. | =FLOOR (2.5, 1) | |
| 2. | =FLOOR (-2.5, -2) | |
| 3. | =FLOOR (2.15, 1) | |
| 4. | =FLOOR (-1.475, 2) | |
| 5. | =FLOOR (3.14159, 3) | |
| 6. | =FLOOR (31415.92654, -2) |