Revision of All Topics Covered in Computer Studies JSS 2 First Term Lesson Notes Week 12

Week 12: Revision of All Topics Covered in Computer Studies

Class: JSS 2
Term: First Term
Week: 12

Part A: Frequently Asked Questions (FAQs)

1. What is a computer?
   A computer is an electronic device that processes data and performs tasks according to a set of instructions.
2. What are the main components of a computer system?
   The main components are hardware, software, and peopleware.
3. What is hardware?
   Hardware refers to the physical components of a computer, such as the keyboard, monitor, and CPU.
4. What is software?
   Software is a set of instructions that tells the hardware how to perform tasks. It includes system and application software.
5. What is an operating system?
   An operating system is software that manages computer hardware and software resources, providing a user interface.
6. What are input devices?
   Input devices are hardware components used to enter data into a computer, like a keyboard and mouse.
7. What are output devices?
   Output devices display or output information from a computer, such as monitors and printers.
8. What is the function of the control unit?
   The control unit directs the operation of the processor and coordinates activities within the computer.
9. What does the arithmetic and logic unit do?
   The arithmetic and logic unit performs arithmetic calculations and logical operations.
10. What is the difference between system software and application software?
    System software manages the computer’s hardware, while application software is designed for end-user tasks.
11. What is a binary number?
    A binary number is a number expressed in the base-2 numeral system, using only the digits 0 and 1.
12. What are the units of storage in computing?
    Common units of storage include bits, bytes, kilobytes, megabytes, and gigabytes.
13. How do you convert decimal to binary?
    Decimal numbers can be converted to binary by repeatedly dividing by 2 and noting the remainders.
14. What is peopleware?
    Peopleware refers to the users and professionals who interact with computers and utilize software.
15. What is resource allocation in an operating system?
    Resource allocation is the process of distributing computer resources among various tasks and users.
16. What is the purpose of utility software?
    Utility software helps maintain and optimize the performance of a computer system.
17. What does it mean to format a storage device?
    Formatting a storage device prepares it for data storage by creating a file system.
18. What are the differences between kilobytes, megabytes, and gigabytes?
    Kilobyte = 1,024 bytes; Megabyte = 1,024 kilobytes; Gigabyte = 1,024 megabytes.
19. What is an example of an operating system?
    Examples include Windows, Linux, and macOS.
20. Why is it important to understand computer systems?
    Understanding computer systems is crucial for effectively using technology in everyday tasks and careers.

Part B: Objective Questions (Fill-in-the-Blank with Options)

1. The main purpose of an operating system is to manage __________. (a) hardware (b) software (c) both (d) none
2. An example of an input device is a __________. (a) printer (b) scanner (c) monitor (d) speaker
3. The __________ unit processes data and performs calculations. (a) control (b) storage (c) arithmetic and logic (d) output
4. Operating systems like Windows and Linux are types of __________. (a) application software (b) system software (c) utility software (d) hardware
5. The smallest unit of data is a __________. (a) byte (b) bit (c) nibble (d) kilobyte
6. __________ software helps manage and maintain a computer. (a) System (b) Utility (c) Application (d) All of the above
7. A __________ is equal to 1,024 bytes. (a) kilobyte (b) megabyte (c) gigabyte (d) nibble
8. The control unit is part of the __________. (a) CPU (b) software (c) input device (d) output device
9. Binary numbers use the digits __________. (a) 0-9 (b) 0-1 (c) 1-2 (d) 1-9
10. __________ is the process of organizing data for storage. (a) Formatting (b) Inputting (c) Outputting (d) Processing
11. The arithmetic and logic unit performs __________ operations. (a) input (b) storage (c) calculation (d) retrieval
12. __________ is not a type of software. (a) Utility (b) Application (c) Memory (d) System
13. The largest common unit of storage is a __________. (a) kilobyte (b) megabyte (c) gigabyte (d) terabyte
14. The main function of utility software is to __________. (a) execute programs (b) manage resources (c) perform tasks (d) maintain systems
15. Peopleware refers to __________. (a) hardware (b) software (c) users and professionals (d) none of the above
16. The decimal system is based on __________. (a) 2 (b) 8 (c) 10 (d) 16
17. __________ is necessary for converting numbers between bases. (a) Calculation (b) Programming (c) Data entry (d) None of the above
18. The __________ manages tasks within the CPU. (a) software (b) control unit (c) input device (d) output device
19. A __________ is a device that displays output from a computer. (a) keyboard (b) monitor (c) scanner (d) mouse
20. An operating system can provide a __________ interface for users. (a) command-line (b) graphical (c) both (d) none

Part C: Theory Questions (Short Answer)

1. What is the definition of a computer?
2. Describe the role of hardware in a computer system.
3. What functions do operating systems perform?
4. Explain the difference between input and output devices.
5. What are the main types of software?
6. Describe the function of the arithmetic and logic unit.
7. What is the significance of resource management in an operating system?
8. How is data represented in binary?
9. What are the benefits of using utility software?
10. Explain the concept of data conversion.
11. How do you convert a binary number to decimal?
12. What is peopleware and why is it important?
13. Describe the characteristics of a kilobyte, megabyte, and gigabyte.
14. What is the purpose of formatting a storage device?
15. Explain the importance of understanding computer systems for users.
16. What distinguishes system software from application software?
17. Describe how the control unit works in a CPU.
18. What is the role of a monitor in a computer system?
19. How do operating systems interact with hardware?
20. What are some common examples of application software?

Part D: True or False Questions

1. A byte consists of 8 bits. (True/False)
2. The control unit performs calculations. (True/False)
3. Input devices send data out from the computer. (True/False)
4. The arithmetic and logic unit is responsible for processing data. (True/False)
5. System software includes programs like word processors. (True/False)
6. Binary numbers can only contain 0 and 1. (True/False)
7. The operating system is not involved in memory management. (True/False)
8. Utility software helps users complete specific tasks. (True/False)
9. A megabyte is larger than a gigabyte. (True/False)
10. Peopleware includes all computer hardware. (True/False)
11. The operating system provides a user interface. (True/False)
12. Nibbles consist of 8 bits. (True/False)
13. Formatting a disk prepares it for use. (True/False)
14. Application software can run without an operating system. (True/False)
15. The decimal system is the same as the binary system. (True/False)
16. The control unit directs the operation of the CPU. (True/False)
17. The output from a printer is considered hard copy. (True/False)
18. Data conversion is unnecessary for programming. (True/False)
19. Hardware and software must work together for a computer to function. (True/False)
20. The largest storage unit commonly used is the petabyte. (True/False)

Part E: Fill-in-the-Gaps Questions

1. The __________ unit manages the execution of instructions in a computer.
2. __________ refers to the physical devices in a computer system.
3. A __________ is software that performs specific tasks for the user.
4. The __________ is the primary interface between users and the computer.
5. Data is often stored in __________, which are units of 8 bits.
6. The main function of an operating system is to manage __________ and software.
7. The __________ unit performs arithmetic calculations and logic operations.
8. __________ software helps in maintaining and optimizing system performance.
9. The binary system is based on two digits: __________ and __________.
10. To convert decimal to binary, one uses the __________ method.
11. A __________ device allows users to input data into the computer.
12. __________ software is used for everyday tasks like word processing.
13. The largest common unit of data storage is the __________.
14. __________ is the process of preparing a disk for data storage.
15. A __________ is an example of an output device.
16. The main role of the control unit is to __________ the CPU’s operations.
17. __________ is essential for understanding how computers process information.
18. The __________ is a type of software that manages hardware resources.
19. The smallest unit of data is a __________.
20. Peopleware refers to the users who interact with __________.

Conclusion

This comprehensive revision covers key concepts taught in the term, helping students prepare effectively for assessments.