This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Computer Systems And Organization > Class 7 Computer Science Chapter 1 Computer Systems And Organization – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 1 Computer Systems And Organization Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of computer is the cheapest among the different classes of computers? A) Microcomputer. B) Minicomputer. C) Supercomputer. D) Mainframe computer. Show Answer Correct Answer: A) Microcomputer. 2. What are the fastest and most powerful computer in terms of performance and data processing? A) Minicomputer. B) Mainframe computer. C) Supercomputer. D) Microcomputer. Show Answer Correct Answer: C) Supercomputer. 3. ..... provide the interface between a running program and the operating system. A) System Call. B) Interrupt. C) System maintenance. D) Video call. Show Answer Correct Answer: A) System Call. 4. What type of computer is also known as "Midrange" ? A) Microcomputer. B) Mainframe computer. C) Supercomputer. D) Minicomputer. Show Answer Correct Answer: D) Minicomputer. 5. Software that enables a user to obtain convert information about another's computer activities by transmitting data from their hard drive A) Worm. B) Spyware. C) Virus. D) Bot. Show Answer Correct Answer: B) Spyware. 6. What is the purpose of defragmentation? A) To prevent data loss in the event of a power outage. B) To increase the speed of a computer system. C) To free up storage space on a computer system. D) To remove viruses from a computer system. Show Answer Correct Answer: B) To increase the speed of a computer system. 7. How do output units operate in a computer system? A) Output units enhance the speed of data processing. B) Output units store data for future use. C) Output units process data into binary format. D) Output units convert processed data into human-readable form. Show Answer Correct Answer: D) Output units convert processed data into human-readable form. 8. Read Only Memory is permanent memory and is called: A) CPU. B) RAM. C) Motherboard. D) ROM. Show Answer Correct Answer: D) ROM. 9. What is the purpose of anti-virus software? A) To remove viruses from a computer system. B) To prevent unauthorized access to a computer system. C) To improve the quality of the graphics output. D) To clean the keyboard. Show Answer Correct Answer: A) To remove viruses from a computer system. 10. The LOGIC GATE that produce HIGH output only when both inputs are HIGH is ..... A) NOT. B) OR. C) AND. D) NAND. Show Answer Correct Answer: C) AND. 11. Identify the 2 types of Micro computers from the list below: A) Laptop and smartphones. B) Smartphones and tablets. C) Desktop and embedded. D) Desktop and laptop. Show Answer Correct Answer: D) Desktop and laptop. 12. The following are the techniques and strategies that you may perform when you are trying to solve hardware issues EXCEPT for: A) Check cable issues. B) Run CCleaner. C) Document computer issues. D) Trial and Error. Show Answer Correct Answer: B) Run CCleaner. 13. Differentiate between system software and application software. A) System software manages hardware and provides a platform, while application software performs specific user tasks. B) System software is designed for mobile devices only. C) Application software manages hardware resources. D) System software is only for gaming applications. Show Answer Correct Answer: A) System software manages hardware and provides a platform, while application software performs specific user tasks. 14. ENIAC stands for ..... A) Electronic Numerical Integrator And Calculator. B) Electrical Numerical Integrator And Calculator. C) Electronic Numerical Integrator And Computer. D) None of these. Show Answer Correct Answer: C) Electronic Numerical Integrator And Computer. 15. What software is freely available to public, but author has a copy right, means that you can only use it, not sell it? A) Package software. B) Open-source software. C) Freeware. D) Custom software. Show Answer Correct Answer: C) Freeware. 16. Define what is meant by 'ransomware' A) Software that spies on what you're doing and then passes it across the internet. B) Software that is used to bribe an organisation in to paying a sum of money, otherwise the software will disrupt their network. C) All the above. D) None of the above. Show Answer Correct Answer: B) Software that is used to bribe an organisation in to paying a sum of money, otherwise the software will disrupt their network. 17. In the year 1970-1999 this generation of computer was made A) Eight. B) Fifth. C) Sixth. D) Fourth. Show Answer Correct Answer: D) Fourth. 18. ..... is the copy of data on a computer or hard drive that is saved to an external media such as a DVD, CD, or flash drive. In an organization, it is routinely done-may it be daily, weekly, or on a monthly basis. This is to ensure that the organization's data are protected and are readily available. A) Emptying the recycle bin. B) Preventive Maintenance. C) Backup. D) Defragmentation. Show Answer Correct Answer: C) Backup. 19. What are the characteristics of operating systems? A) No user interface. B) Limited device support. C) Multitasking, resource management, user interface, security, device management. D) Single-tasking. Show Answer Correct Answer: C) Multitasking, resource management, user interface, security, device management. 20. What type of computer are not as powerful as the supercomputer and is designed to run multiple programs concurrently? A) Mainframe computer. B) Minicomputer. C) Supercomputer. D) Microcomputer. Show Answer Correct Answer: A) Mainframe computer. 21. This type of computer system is tiny and is mainly used to schedule appointments and send and receive emails. A) PIA. B) PCA. C) PDA. D) DPA. Show Answer Correct Answer: C) PDA. 22. To enter, example a website A) Access. B) Log in. C) Account name. D) Password. Show Answer Correct Answer: A) Access. 23. It acts as a barrier between a trusted system or network and outside connections, such as the Internet. A) Firewall. B) Spyware. C) Phishing. D) Encryption. Show Answer Correct Answer: A) Firewall. 24. Which of the following is NOT a common type of computer network? A) CAN. B) MAN. C) LAN. D) WAN. Show Answer Correct Answer: A) CAN. 25. Program that a computer uses to do different jobs A) Peripherals. B) Computer. C) Software. D) Hardware. Show Answer Correct Answer: C) Software. 26. Someone you work with; this term is used especially by professional people A) Classmate. B) Group mate. C) Colleague. D) Relatives. Show Answer Correct Answer: C) Colleague. 27. A piece of computer equipment with a screen that shows information or pictures A) Screen. B) Display. C) TV. D) Monitor. Show Answer Correct Answer: D) Monitor. 28. Brute-force attacks are used to gain entry to A) Physical security systems. B) Biometric systems. C) Unsecure systems. D) Password-based systems. Show Answer Correct Answer: D) Password-based systems. 29. This type of software is sold in a bundle due to similar function of programs. A) Open-source software. B) Package software. C) Custom software. D) Freeware. Show Answer Correct Answer: B) Package software. 30. An input is ..... A) Any data and instructions entered into the memory of a computer. B) Unprocessed data. C) Data that has been processed into a useful form. D) Any hardware component that allows users to enter data and instructions into a computer. Show Answer Correct Answer: A) Any data and instructions entered into the memory of a computer. 31. Which of the following is the best way to prevent unauthorized access to a computer network? A) Installing antivirus software. B) Disabling remote access. C) Using strong passwords. D) Turning off the computer when not in use. Show Answer Correct Answer: C) Using strong passwords. 32. What is the function of the input unit in a computer? A) To execute instructions and perform calculations. B) To manage the computer's power supply. C) To store data permanently in the computer. D) The function of the input unit is to receive and convert data and instructions into a format usable by the computer. Show Answer Correct Answer: D) The function of the input unit is to receive and convert data and instructions into a format usable by the computer. 33. Which of the following is NOT a common cause of slow computer performance? A) Virus infection. B) Excessive use of the mouse. C) Insufficient RAM. D) Too many open programs. Show Answer Correct Answer: B) Excessive use of the mouse. 34. What is a device driver? A) A mediator between the operating system and the attached device. B) A translator to convert program written in assembly or high level language to machine language. C) Converts the source code into machine code to be displayed on an output device. D) None of the above. Show Answer Correct Answer: A) A mediator between the operating system and the attached device. 35. Fifth generation computer used A) Vacuum tubes. B) Microprocessor. C) Artificial Intelligence. D) None of these. Show Answer Correct Answer: C) Artificial Intelligence. 36. These are efforts by bad actors to profit from their malicious attacks. A) Cybercrime. B) Adware. C) Botnets. D) VPN. Show Answer Correct Answer: A) Cybercrime. 37. Which of the following is NOT a component of a computer network? A) Switch. B) Router. C) Keyboard. D) Modem. Show Answer Correct Answer: C) Keyboard. 38. To make a copy of information stored on a computer A) Checkup. B) Setup. C) Lookup. D) Backup. Show Answer Correct Answer: D) Backup. 39. Microprocessors were used in A) 1st generation computer. B) 4th generation computer. C) 5th generation computer. D) None of these. Show Answer Correct Answer: B) 4th generation computer. 40. Below are the communication models EXCEPT: A) Message passing. B) Network connection. C) Shared memory. D) None of the above. Show Answer Correct Answer: B) Network connection. 41. What type of computer system can be found in the lab? A) Micro. B) Mini. C) Mainframe. D) Super. Show Answer Correct Answer: A) Micro. 42. What type of storage that stores data temporarily? A) Secondary storage. B) Input Devices. C) Output Devices. D) Primary storage. Show Answer Correct Answer: D) Primary storage. 43. 3rd Generation computer used A) Vacuum Tubes. B) Transistors. C) Integrated Circuits. D) None of these. Show Answer Correct Answer: C) Integrated Circuits. 44. Which of the following are the benefits of conducting maintenance? A) Increased data protection. B) Extended device life. C) Increased equipment stability. D) Reduced repair costs. E) All of the above. Show Answer Correct Answer: E) All of the above. 45. Identify the type of malware that spies on what you doing and passes it across the internet A) Trojan. B) Worm. C) Virus. D) Spyware. Show Answer Correct Answer: D) Spyware. 46. This type of software is a licensed software under exclusive legal right of owner. A) Off-the-shelf. B) Contract. C) In-house. D) Proprietary. Show Answer Correct Answer: D) Proprietary. 47. What is the purpose of a firewall? A) To clean the keyboard. B) To display system status information. C) To increase the speed of a computer system. D) To prevent unauthorized access to a computer system. Show Answer Correct Answer: D) To prevent unauthorized access to a computer system. 48. Which of the following is NOT a common type of computer network cable? A) Ethernet. B) Coaxial. C) Power cable. D) Ethernet. Show Answer Correct Answer: C) Power cable. 49. To make a document that is exactly the same as an earlier or original one A) Store. B) Save. C) Delete. D) Copy. Show Answer Correct Answer: D) Copy. 50. These are hardware used to enter data to be processed by the computer in the processing unit. A) Secondary storage. B) Input Devices. C) Primary storage. D) Output Devices. Show Answer Correct Answer: B) Input Devices. 51. What is the disadvantage of layered approach? A) Less efficient. B) Difficult to debug. C) Complexity of construction. D) None of the above. Show Answer Correct Answer: A) Less efficient. 52. What is the fullform of IPO? A) Input Print Output. B) Internet process Output. C) Input Process Output. D) Internet Print Output. Show Answer Correct Answer: C) Input Process Output. 53. Identify and describe the various types of memory in a computer. A) Primary Storage, Tertiary Storage, and Network Storage. B) The various types of memory in a computer include RAM, ROM, Cache Memory, Secondary Storage, and Virtual Memory. C) Flash Memory, Hard Drive, and SSD. D) Registers, L1 Cache, and L2 Cache. Show Answer Correct Answer: B) The various types of memory in a computer include RAM, ROM, Cache Memory, Secondary Storage, and Virtual Memory. 54. The CPU carries out instructions, one after another, billions of times a second is known as ..... A) The Fetch-Decode-Execute Cycle. B) The Fetch-Breakdown-Execute Cycle. C) The Fetch-Breakdown-Sign out Cycle. D) The Fetch-Execute Cycle. Show Answer Correct Answer: A) The Fetch-Decode-Execute Cycle. 55. How many generations of computers are there? A) 6. B) 4. C) 5. D) 3. Show Answer Correct Answer: C) 5. 56. A computer built to support more than one user A) Mini. B) Mainframe. C) Super. D) PDA. Show Answer Correct Answer: A) Mini. 57. Troubleshooting is not honed over time. Every time an issue is resolved, this should follow guidelines on textbooks and manuals strictly. Through troubleshooting experience, one should know the steps needed to resolve an issue quickly. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 58. Is what generation of computer A) Second. B) Fourth. C) First. D) Third. Show Answer Correct Answer: A) Second. 59. Which of the following is the best way to prevent data loss due to hardware failure? A) Regular data backups. B) Disabling automatic updates. C) Unplugging the computer when not in use. D) Installing antivirus software. Show Answer Correct Answer: A) Regular data backups. 60. Computers are programed using A) Machine Language. B) Advance Language. C) Programmable Language. D) Optical Language. 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