Class 4 Online Assessment

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Class 4 Online Assessment - Quiz


Questions and Answers
  • 1. 

    Charles Babbage invented ________________ machine.

    • A.

      Analytical

    • B.

      Steam

    • C.

      Abacus

    • D.

      None of these

    Correct Answer
    A. Analytical
    Explanation
    Charles Babbage is known for his invention of the Analytical Engine, which is considered to be the precursor to modern computers. This machine was designed to perform complex calculations and had the ability to store and manipulate data. Babbage's Analytical Engine was a significant development in the history of computing and laid the foundation for the digital computers we use today. Therefore, the correct answer is Analytical.

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  • 2. 

    Necessity is the _____________ of invention.

    • A.

      Father

    • B.

      Idea

    • C.

      Mother

    • D.

      None of these

    Correct Answer
    C. Mother
    Explanation
    The phrase "Necessity is the mother of invention" means that when there is a need or a problem, people are motivated to come up with creative solutions or new ideas. This expression implies that necessity or need is the driving force behind innovation and invention.

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  • 3. 

    Expand C P U

    • A.

      Central Programming Unit

    • B.

      Central Processing Unit

    • C.

      Common Programme Unit

    • D.

      Common Processing Unit

    Correct Answer
    B. Central Processing Unit
    Explanation
    The correct answer is Central Processing Unit. The CPU, or Central Processing Unit, is the primary component of a computer that carries out instructions of a computer program by performing basic arithmetic, logical, control, and input/output (I/O) operations. It acts as the brain of the computer, executing instructions and coordinating the activities of all other hardware components. The CPU consists of an arithmetic logic unit (ALU) for performing calculations, control unit for managing the execution of instructions, and registers for temporary storage of data.

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  • 4. 

    8 bits is equal to __________ bytes.

    • A.

      5

    • B.

      2

    • C.

      3

    • D.

      1

    Correct Answer
    D. 1
    Explanation
    In computer systems, 8 bits make up 1 byte. Therefore, the correct answer is 1 byte.

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  • 5. 

    CU stands for ___________

    • A.

      Control Unit

    • B.

      Common Unit

    • C.

      Centre Unit

    • D.

      None of these

    Correct Answer
    A. Control Unit
    Explanation
    CU stands for Control Unit. The control unit is a component of a computer's central processing unit (CPU) that manages the execution of instructions. It coordinates the activities of all the other hardware components, such as the arithmetic logic unit and memory, to ensure that instructions are executed in the correct sequence and that data is moved between different components as needed. The control unit plays a crucial role in the overall functioning of a computer system by interpreting and executing instructions fetched from memory.

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  • 6. 

    The computer memory is measured in _______________

    • A.

      Numbers

    • B.

      Alphabets

    • C.

      Binary Digits

    • D.

      All the above

    Correct Answer
    C. Binary Digits
    Explanation
    Computer memory is measured in binary digits, also known as bits. A bit is the basic unit of information in computing and can represent either a 0 or a 1. Memory capacity is typically expressed in terms of the number of bits it can store. This is because computers use a binary system to store and process data, where each binary digit represents an on or off state of an electronic switch. Therefore, the correct answer is binary digits.

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  • 7. 

    ROM stands for _______________

    • A.

      Random Of Memory

    • B.

      Read Only Memory

    • C.

      Right One Memory

    • D.

      None of these

    Correct Answer
    B. Read Only Memory
    Explanation
    ROM stands for Read Only Memory. It is a type of computer memory that stores data permanently and cannot be modified or erased. It contains instructions that are permanently written during manufacturing and remains intact even when the computer is turned off. ROM is used to store firmware, boot loaders, and other essential system software that are required for the computer to start up and function properly. Unlike Random Access Memory (RAM), which is volatile and temporary, ROM retains its data even without power. Therefore, the correct answer is Read Only Memory.

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  • 8. 

    Memory Unit is a collection of Integrated __________________ chips.

    • A.

      Non electronic

    • B.

      Basic

    • C.

      Current

    • D.

      Electronic

    Correct Answer
    D. Electronic
    Explanation
    A memory unit is a collection of integrated electronic chips. These chips are responsible for storing and retrieving data in electronic devices. They are designed to store information in the form of binary digits (bits) and are commonly used in computers, smartphones, and other digital devices. Non-electronic chips do not have the capability to store and process data electronically, so they would not be suitable for a memory unit.

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  • 9. 

    We can play __________ games using Multimedia.

    • A.

      Animation

    • B.

      3D

    • C.

      2D

    • D.

      None of these

    Correct Answer
    B. 3D
    Explanation
    Multimedia refers to the use of various forms of media such as text, graphics, audio, and video. 3D games utilize multimedia elements such as 3D graphics, sound effects, and interactive gameplay to provide an immersive gaming experience. Therefore, we can play 3D games using multimedia. Animation and 2D games also use multimedia, but the question specifically mentions 3D games as the correct answer. "None of these" is not the correct answer as it contradicts the statement that we can play games using multimedia.

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  • 10. 

    WWW stands for _____________-

    • A.

      World Wide Work

    • B.

      World Work Wide

    • C.

      World Wide Web

    • D.

      None of these

    Correct Answer
    C. World Wide Web
    Explanation
    The correct answer is "World Wide Web". WWW is an acronym that stands for World Wide Web, which is a system of interconnected hypertext documents accessed through the internet. It is a network of information resources that allows users to navigate and access various websites and webpages using hyperlinks. The term was coined by Tim Berners-Lee in 1989 and has since become synonymous with the internet.

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  • 11. 

    The ______________ is the World Wide Network of computers.

    Correct Answer
    INTERNET
    Explanation
    The given correct answer for this question is "INTERNET" because it accurately completes the sentence by stating that the Internet is the World Wide Network of computers. The Internet is a global network that connects millions of computers and allows the exchange of information and communication between users worldwide. It is a vast network infrastructure that encompasses various technologies and protocols to ensure the seamless transmission of data across different devices and locations.

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  • 12. 

    The basic counting we do with _________________

    Correct Answer
    FINGERS
    Explanation
    The basic counting we do with our fingers. This statement implies that fingers are used as a fundamental tool for counting. Fingers provide a tangible and easily accessible method for keeping track of numbers and quantities.

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  • 13. 

    Father of Modern Computer is _________________________

    Correct Answer
    CHARLES BABBAGE
    Explanation
    Charles Babbage is often referred to as the Father of Modern Computer because of his contributions to the development of the first mechanical computer. He designed the Analytical Engine, which was a programmable machine capable of performing various calculations. Although the Analytical Engine was never built during Babbage's lifetime, his designs and concepts laid the foundation for modern computers. Babbage's work paved the way for the development of computer hardware and programming, making him a significant figure in the history of computing.

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  • 14. 

    M U stands for ____________________

    Correct Answer
    MEMORY UNIT
    Explanation
    M U stands for Memory Unit. The term "Memory Unit" refers to a component or device in a computer system that is responsible for storing and retrieving data. It is a crucial part of any computer system as it holds the instructions and data that the processor needs to perform tasks. The memory unit can be further divided into different types such as primary memory (RAM) and secondary memory (hard drive, SSD). The memory unit plays a vital role in the overall performance and functionality of a computer system.

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  • 15. 

    1 Character = _____________ bits

    Correct Answer
    8
    Explanation
    Each character in a computer system is represented by a combination of bits. In this case, the question states that 1 character is equal to 8 bits. This is because a bit is the smallest unit of information in a computer, and 8 bits make up 1 byte. Therefore, the correct answer is 8.

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  • 16. 

    Bits means _____________________

    Correct Answer
    BINARY DIGITS
    Explanation
    Bits refers to binary digits, which are the fundamental units of information in computing and digital communications. A bit can have a value of either 0 or 1, representing the two possible states of a binary system. It is the smallest unit of data storage and processing in computers, and multiple bits are combined to represent more complex information such as numbers, characters, and instructions. Therefore, "binary digits" accurately defines the term "bits" and its role in the digital world.

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  • 17. 

    Multimedia improves _______________ thinking.

    Correct Answer
    CREATIVE
    Explanation
    Multimedia improves creative thinking because it engages multiple senses and allows for the exploration of different mediums such as images, videos, and audio. This stimulates the brain and encourages individuals to think outside the box, come up with new ideas, and express their creativity in various ways. Additionally, multimedia provides a platform for interactive and immersive experiences, which can further enhance creative thinking by allowing individuals to actively participate and engage with the content.

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  • 18. 

    A _____________ browser is simple way to view.

    Correct Answer
    WEB
    Explanation
    A web browser is a simple way to view webpages and access information on the internet. It allows users to navigate through different websites, search for specific content, and interact with various online services. With a web browser, users can easily view and interact with web-based content, making it an essential tool for accessing and exploring the vast amount of information available on the web.

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  • 19. 

    1024 KB = _____________ MEGA BYTE

    Correct Answer
    1
    Explanation
    The given question asks for the conversion of 1024 KB to megabytes. Since 1 megabyte is equal to 1024 kilobytes, the correct answer is 1. Therefore, 1024 KB is equal to 1 megabyte.

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  • 20. 

    Memory unit is called as ______________ unit.

    Correct Answer
    STORAGE
    Explanation
    The memory unit is referred to as the storage unit because it is responsible for storing and retrieving data in a computer system. It stores both the instructions and data that are needed for the functioning of a computer. The storage unit can be in the form of primary memory (RAM) or secondary memory (hard disk, SSD, etc.), and it plays a crucial role in the overall performance and functionality of a computer.

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  • 21. 

    Abacus was invented by Chinese.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The abacus was indeed invented by the Chinese. It is an ancient calculating tool that consists of a series of rods or wires with beads that can be moved back and forth. The Chinese developed the abacus around 500 BCE and it was widely used for centuries as a simple and efficient method of performing mathematical calculations. Its invention in China had a significant impact on the development of mathematics and helped pave the way for more advanced calculating devices in the future.

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  • 22. 

    ALU stands for  Answer Logo Unit.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The given statement is false. ALU stands for Arithmetic Logic Unit, not Answer Logo Unit. The ALU is a fundamental component of a computer's central processing unit (CPU) and is responsible for performing arithmetic and logical operations on data.

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  • 23. 

    Mother board has Microprocessor

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The given answer is true because the motherboard is the main circuit board of a computer system that houses various components, including the microprocessor. The microprocessor is the central processing unit (CPU) of the computer, responsible for executing instructions and performing calculations. Therefore, it is correct to say that the motherboard has a microprocessor.

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  • 24. 

    RAM is a volatile memory

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    RAM (Random Access Memory) is a type of computer memory that is volatile, meaning it loses its stored data when the power is turned off or disrupted. Therefore, the statement "RAM is a volatile memory" is true, not false.

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  • 25. 

    In ROM the data is not erased

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement "In ROM, the data is not erased" is true. ROM (Read-Only Memory) is a type of computer memory that stores data permanently and cannot be modified or erased. It retains its content even when the power is turned off. Unlike other types of memory such as RAM (Random Access Memory), ROM is non-volatile and is typically used to store firmware or software that needs to be permanently stored and accessed by the computer system.

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  • 26. 

    The memory unit is the collection of ICs

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The memory unit is indeed the collection of ICs (Integrated Circuits). ICs are electronic components that are used to store and retrieve data in a computer's memory. These ICs, also known as memory chips, are responsible for storing and processing data in the form of binary digits (bits). They are typically organized into a hierarchical structure, with different types of memory (such as cache, RAM, and ROM) serving different purposes and providing varying levels of access speed and capacity. Therefore, the statement "The memory unit is the collection of ICs" is true.

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  • 27. 

    ISP stands for Internet Service Provider

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    ISP stands for Internet Service Provider, which refers to a company or organization that provides internet access to users. They offer various services such as internet connectivity, email services, web hosting, and more. Therefore, the statement "ISP stands for Internet Service Provider" is true.

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  • 28. 

    4 bits = 10 Nibbles

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement "4 bits = 10 Nibbles" is false. A nibble is a unit of digital information that consists of 4 bits. Therefore, 4 bits can only form 1 nibble, not 10.

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  • 29. 

    Mouse is an Input device

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement "Mouse is an Input device" is true because a mouse is a common input device used to interact with a computer. It allows users to control the cursor on the screen and select or manipulate objects by clicking or dragging. The mouse typically has buttons and a scroll wheel, which provide additional input options. Therefore, it is classified as an input device as it allows users to input commands and data into the computer system.

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  • 30. 

    Printer is an Output device

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Printers are considered output devices because they receive data from a computer or another device and produce a physical copy of that data on paper or another medium. They do not input or process information, but rather provide a tangible output of the information that has been processed by the computer. Therefore, it is correct to say that a printer is an output device.

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  • 31. 

    Write the name of the Multimedia hardware

    Correct Answer
    WEB CAMERA
    Explanation
    The name of the multimedia hardware mentioned in the question is "Web Camera". A web camera is a device that captures and transmits video and audio in real-time over the internet. It is commonly used for video conferencing, online streaming, and video chatting.

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  • 32. 

    What is this ?

    Correct Answer
    CPU
  • 33. 

    ____________ is a wireless technology

    Correct Answer
    WI - FI
    Explanation
    Wi-Fi is a wireless technology that allows devices to connect to the internet or communicate with each other without the need for physical cables. It uses radio waves to transmit data between devices, such as smartphones, laptops, and routers. Wi-Fi has become widely used in homes, offices, and public spaces, providing convenient and fast internet access. It enables users to access the internet, stream videos, download files, and connect multiple devices simultaneously. Wi-Fi has revolutionized the way people connect and communicate, making it an essential technology in today's digital world.

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  • 34. 

    Goggle Chrome is a Internet Web Browser

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The given statement is true because Google Chrome is indeed an internet web browser. It is a popular browser developed by Google that allows users to access and navigate various websites on the internet. It offers features such as tabbed browsing, fast page loading, and a user-friendly interface. Therefore, the correct answer is true.

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  • 35. 

    It is an MODEM

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The given correct answer is true because a modem is a device that modulates and demodulates signals, allowing computers to transmit data over telephone lines or cable connections. It is used to connect to the internet or other networks. Therefore, the statement "It is a MODEM" is true.

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  • 36. 

    Name the picture.

    • A.

      Mouse

    • B.

      Hard disk

    • C.

      Key Board

    • D.

      C D

    Correct Answer
    A. Mouse
    Explanation
    The picture being referred to in the question is most likely an image of a mouse, which is a common computer peripheral used for navigating and interacting with graphical user interfaces.

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  • 37. 

    ________________ is an open storage unit.

    Correct Answer
    RAM
  • 38. 

    It is a CD drive

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement "It is a CD drive" is false. This means that the object or device being referred to is not a CD drive.

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  • 39. 

    The image is a Microprocessor

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The given answer is true because the image is indeed a microprocessor. A microprocessor is an integrated circuit that contains the functions of a central processing unit (CPU) of a computer. It is responsible for executing instructions and performing calculations, making it a crucial component of a computer system. The image provided likely shows the physical representation of a microprocessor, displaying its intricate design and various components.

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  • 40. 

                           is an  input device  that is used for playing games.

    Correct Answer
    JOYSTICK
    Explanation
    A joystick is an input device that is used for playing games. It is a handheld device with a stick that can be moved in different directions to control the movement of characters or objects in a game. The joystick usually has buttons that can be pressed to perform different actions in the game. It provides a more immersive and intuitive way of interacting with games compared to other input devices like keyboards or mice.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 05, 2016
    Quiz Created by
    Saipavan
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