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What is Operating system? Explain the major functions of Operating System.
Differentiate between primary and secondary memory.
What is computer virus? Explain symptoms of computer virus.
Define database? Explain the advantages of database over file based system.
What is proxy server? Write down the benefit of using proxy server in the organization.
Define e-commerce? Mention the benefits of using it in the context of customer?
Consider the following structure and answer the questions.
- E:\ROOT
- dir_1
| file_1.txt
- file_2.txt
| dir_3
- dir_2.txt
- file_2.txt
a) Write down DOS command to create above files and directories.b) Write down DOS command to move all text files into dir_3 directory.
c) Write DOS command to delete dir_1 directory.
d) Hide the root directory from E drive.
Attempt any TWO questions
[2x10=20]a) From the following spreadsheet, write the formula to address the following conditions:
| S.n | Name | Address | Post | Salary | Bonus | Tax | HA | Total |
|---|---|---|---|---|---|---|---|---|
| 1 | Ram | Kim | Manager | 12000 | ||||
| 2 | Sham | Pokhara | Accountant | 11500 | ||||
| 3 | Hari | Pokhara | Engineer | 10000 | ||||
| Maximum Salary | ? | |||||||
Bonus = 15% of Salary.
Tax = 10% of Salary if Post is "Manager".
HA = 5% of Salary if Address is not "Kim".
Total = (Salary + Bonus + HA) - Tax.
Find the maximum salary.
b.What is Photoshop? Explain five major tools of Photoshop.
What is a word processor? Explain the major functions available in the Home tab of a Word document.
a) What is animation? What are the advantages of using Slide Master in PowerPoint?
b) Explain the block diagram of a computer and its various components.