MEGA TARGET PAPER – COMPUTER
SCIENCE XI (Sindh Board)
Teacher : Rana Arsalan
SECTION A – MCQs (45 Practice Questions)
1. Computer is an electronic device.
2. The word Computer is derived from Compute.
3. Raw facts and figures are called Data.
4. Processed data is called Information.
5. The brain of computer is CPU.
6. CPU stands for Central Processing Unit.
7. Physical components are called Hardware.
8. A set of instructions is called Software.
9. ROM is a Non-volatile memory.
10. RAM is a Volatile memory.
11. Input device example is Keyboard.
12. Output device example is Printer.
13. ALU performs Arithmetic & Logic operations.
14. CU stands for Control Unit.
15. Speed of CPU is measured in Hertz.
16. LAN stands for Local Area Network.
17. WAN stands for Wide Area Network.
18. Network topology means Network structure.
19. Bus topology uses Single backbone.
20. Ring topology is based on Circular path.
21. Star topology requires Hub/Switch.
22. Device used to connect networks is Router.
23. Modem converts Analog to Digital signals.
24. Protocol means Communication rules.
25. OSI model has 7 layers.
26. Optical fiber is Fast media.
27. Internet is an example of WAN.
28. Virus is a harmful program.
29. Antivirus is used to remove virus.
30. Hacking is unauthorized access.
31. Software piracy means illegal copying.
32. Copyright law protects software rights.
33. Primary storage includes RAM & ROM.
34. Secondary storage example is Hard disk.
35. Fetch cycle relates to CPU instruction execution.
36. Barcode reader is an Input device.
37. Impact printer example is Dot Matrix.
38. Non-impact printer example is Laser.
39. Firewall is used for Network security.
40. Full duplex transmission is both ways simultaneously.
41. Email is an Internet service.
42. Chatting is online communication.
43. IP address identifies computer on network.
44. Data transmission speed is measured in bps.
45. Fastest transmission medium is Optical fiber.
SECTION B – Short Questions (45 Practice Questions)
1. Define Computer. and IT with Example.
2. Differentiate between Data and Information.
3. What is Hardware? and Software Give examples.
4. Differentiate between Hard copy and Soft copy and define device of its .
5. Define CPU and its main parts. Draw the block diagram of CPU.
6. Define Impact and Non-Imapact printer.
7. What is Control Unit?
8. Difference between RAM and ROM.and types of ROM.
9. Define Primary Memory. and Secondary Memory .
10. Define Secondary Storage with examples.
11. What is a Computer Network and its Types ?
12. Define LAN.and its Components
13. Differentiate between LAN and WAN.
14. Define Network and What is Network Topology?
15. Explain Bus Topology with advantages and disadavantages .
16. Explain Ring Topology with advantages and disadavantages .
17. Explain Star Topology with advantages and disadavantages .
18. Define Networks Device Switch, Hub, Router, Getway,Firewall ?
19. Define Analog Signal and Digital Signal?
20. Differentiate between Start and Bus Topology or Star and Ring Topology.
21. What is Modem and NIC ?
22. Define Protocol and Enlist the Five Name Of Protocals.
23. Explain OSI Model with 7 layers.?
24. Define the term of Bandwith, Frequency and bund Rate and Data Rate.
25. What is Communication Media/Medium/Channels and its Types?
25.Define Mode of Transmisson (Synchronous and Asynchronous ).
26. Difference between Guided and Unguided Media.
27. What is Optical Fiber and Define Characterstics of its ?
28. Define Virus and types of Virus.
29. Write symptoms of Virus attack.
30. What is Antivirus and enlist the five name of antivirus?
31. Define Utilites software.
32. What is Hacking?
33. Define Cyber Crime.
34. What is Software Piracy?
35. Define Copyright Law.
36. Define Busses and its Types .
37. What is Fetch Cycle draw its diagram?
38. Draw block diagram of computer system.
39. What is Barcode Reader?
40. Difference between Impact and Non-impact printers.
41. What is Simplex transmission?
42. What is Half duplex?
43. What is Full duplex?
44. What is IP address?
45. Define Internet.
SECTION C – Long Questions (15 Practice Questions)
1. Explain characteristics of Computer in detail.
2. Describe CPU and its components with diagram.
3. Explain types of computer memory (Primary & Secondary).
4. Discuss Input and Output devices in detail.
5. Define Computer Network and explain types of networks.
5.Define Register and types of Registers.
6. Explain Bus, Ring and Star Topologies with diagrams.
7. Explain OSI Model layers in detail.
8. Describe Transmission Media (Guided & Unguided).
9. Explain Modem and its working.
10. What is Computer Virus? Explain types and prevention.
11. Explain Antivirus protection methods.
12. Discuss Cyber Crimes and their effects.
13. Explain Software Piracy and Copyright Law.
14. Explain Computer Security techniques.
15. Write note on Internet services (Email, WWW, Chat).
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