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All questions of Computer System for Humanities/Arts Exam

What is the smallest unit of memory in a computer?
  • a)
    Bit
  • b)
    Byte
  • c)
    Nibble
  • d)
    Kilobyte
Correct answer is option 'A'. Can you explain this answer?

Pj Commerce Academy answered
The smallest unit of memory in a computer is a bit, which can hold a value of either 0 or 1. Bits are the fundamental building blocks of digital data and are grouped together to form larger units such as nibbles (4 bits) and bytes (8 bits). Understanding these basic units is crucial, as they form the foundation of how data is processed and stored in computer systems. An interesting fact is that despite being the smallest unit, bits are used in various ways, including representing binary code in programming and digital communication.
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Which of the following is NOT considered an output device?
  • a)
    Monitor
  • b)
    Speaker
  • c)
    Printer
  • d)
    Keyboard
Correct answer is option 'D'. Can you explain this answer?

Learning Educators answered
A keyboard is primarily an input device used to enter data into a computer system, while monitors, printers, and speakers are all output devices that present information in various forms, such as visual or audio. Understanding the distinction between input and output devices is crucial in computer science, as it helps in designing effective user interfaces and enhances user interaction with technology.

Which type of memory is characterized as volatile, meaning it loses its data when the power is turned off?
  • a)
    Read Only Memory (ROM)
  • b)
    Cache Memory
  • c)
    Random Access Memory (RAM)
  • d)
    Secondary Memory
Correct answer is option 'C'. Can you explain this answer?

Pj Commerce Academy answered
Random Access Memory (RAM) is classified as volatile memory because it only retains data while the computer is powered on. Once the power is off, all information stored in RAM is erased. This characteristic makes RAM suitable for temporary data storage during processing tasks, allowing the CPU to access and manipulate data quickly. In contrast, Read Only Memory (ROM) is non-volatile and retains its data regardless of power status, serving a different purpose in the computer system. An interesting fact is that the speed of RAM can significantly affect overall system performance, especially in tasks requiring rapid data access, such as gaming or video editing.

What is the significance of word size in microprocessors?
  • a)
    It determines the amount of RAM a computer can support.
  • b)
    It refers to the number of cores within a microprocessor.
  • c)
    It is used to measure clock speed in Gigahertz.
  • d)
    It indicates the maximum number of bits the microprocessor can process simultaneously.
Correct answer is option 'D'. Can you explain this answer?

Learning Educators answered
Word size is significant in microprocessors because it defines the maximum number of bits that can be processed at one time. For example, as technology has advanced, word sizes have increased from 8 bits to a minimum of 16 bits, and even up to 64 bits in modern processors. This increase allows for more data to be handled simultaneously, leading to improved performance and the ability to support larger memory sizes, like RAM. Interestingly, the evolution of word size has been pivotal in the transition from simple computational tasks to complex applications requiring substantial processing power.

Why is RAM important for input devices when data is entered into a computer?
  • a)
    It permanently stores all input data.
  • b)
    It temporarily holds input data for processing.
  • c)
    It converts input data into a digital format.
  • d)
    It provides backup storage for input data.
Correct answer is option 'B'. Can you explain this answer?

Pj Commerce Academy answered
RAM (Random Access Memory) is essential because it temporarily holds input data while the computer processes it. This allows for quick access and manipulation of data, facilitating efficient computing. Unlike secondary storage, which retains data permanently, RAM is volatile and loses its contents when the power is turned off. This characteristic highlights the need for both types of memory in computer systems.

Which of the following statements accurately describes software?
  • a)
    Software is a physical component of a computer that can be touched and seen.
  • b)
    Software consists of instructions and data that control hardware and perform specific tasks.
  • c)
    Software is only used for creating and editing text documents.
  • d)
    Software and hardware operate independently of each other.
Correct answer is option 'B'. Can you explain this answer?

EduRev Humanities answered
Software is defined as a set of instructions and data that instructs computer hardware on what tasks to perform. Unlike hardware, which comprises physical components that can be seen and touched, software is intangible and essential for the operation of any computer system. While software does include applications for word processing, it also encompasses operating systems, video players, and photo editors, showcasing its diverse applications in managing and utilizing computer resources effectively. An interesting fact is that without software, a computer would be unable to execute any commands, rendering it a mere collection of hardware components.

Which of the following best describes primary memory in a computer system?
  • a)
    It is used for permanent data storage.
  • b)
    It temporarily stores data and instructions for quick access during processing.
  • c)
    It refers to external devices like hard drives and SSDs.
  • d)
    It is the same as secondary memory.
Correct answer is option 'B'. Can you explain this answer?

EduRev Humanities answered
Primary memory, often referred to as RAM (Random Access Memory), is crucial for a computer's operation as it temporarily holds data and instructions that the CPU needs to process tasks efficiently. Unlike secondary memory, which retains information permanently, primary memory is volatile, meaning it loses its content when the power is turned off. This distinction is vital for understanding computer architecture, as it affects performance and storage capabilities. Interestingly, the speed of primary memory plays a significant role in how quickly a computer can execute tasks, making it a key factor in overall system performance.

Which category of software is primarily responsible for managing and controlling the hardware components of a computer?
  • a)
    Application Software
  • b)
    Utility Software
  • c)
    Programming Tools
  • d)
    System Software
Correct answer is option 'D'. Can you explain this answer?

Pj Commerce Academy answered
System software is essential for the proper functioning of a computer as it manages hardware and software resources. It allows different hardware components to interact efficiently and is critical for running application software. Examples of system software include operating systems like Windows and Linux, which serve as intermediaries between users and the computer's hardware. Interestingly, without system software, other software applications would not be able to operate, highlighting its foundational role in computing.

What technology allows users to input data into a computer using their voice?
  • a)
    Touch screen
  • b)
    Braille keyboard
  • c)
    Google Voice Search
  • d)
    Optical character recognition
Correct answer is option 'C'. Can you explain this answer?

EduRev Humanities answered
Google Voice Search is an example of voice recognition technology that allows users to input queries verbally. This advancement in technology has made data entry more accessible, especially for individuals with disabilities. Voice commands can enhance user experience, making interactions with computers more intuitive and efficient.

What is a microprocessor primarily defined as?
  • a)
    A large, room-sized CPU
  • b)
    A CPU implemented on a single microchip
  • c)
    A type of memory storage device
  • d)
    An external processing unit
Correct answer is option 'B'. Can you explain this answer?

Pj Commerce Academy answered
A microprocessor is defined as a CPU that is implemented on a single microchip. This advancement has allowed for increased efficiency and miniaturization in computer design, leading to modern computers being significantly more powerful and compact compared to their early counterparts. An interesting fact about microprocessors is that they can contain millions of tiny components like transistors and diodes, which work together to perform complex calculations and data processing at incredibly high speeds.

Which of the following best describes structured data?
  • a)
    Information that is organized in a random manner
  • b)
    Unorganized content such as social media posts and videos
  • c)
    Data that follows a strict record structure and is easily processed
  • d)
    Data that contains internal tags to separate elements
Correct answer is option 'C'. Can you explain this answer?

EduRev Humanities answered
Structured data is characterized by its organization according to a strict record structure, making it straightforward to understand and process. It typically exists in a predefined tabular format, which allows for efficient access and retrieval. This is crucial in various applications, such as maintaining attendance records or sales transactions, where accurate data management is essential for decision-making. Understanding this distinction is important as it affects how data is stored, accessed, and utilized in various fields, including business analytics and database management.

What is the primary purpose of data capturing in information systems?
  • a)
    To delete unnecessary data from storage
  • b)
    To collect data from various sources in a digital format
  • c)
    To generate reports based on stored data
  • d)
    To analyze data for trends and patterns
Correct answer is option 'B'. Can you explain this answer?

Pj Commerce Academy answered
The primary purpose of data capturing is to collect data from various sources in a digital format. This process is essential as it serves as the first step in managing information. Captured data can come from simple tools like keyboards or more complex sources like social media and sensors. Understanding how data is captured is crucial for ensuring that the information collected is accurate and relevant for further processing and analysis. An interesting fact is that advancements in technology have led to the development of automated data capturing methods, such as Optical Character Recognition (OCR) and Internet of Things (IoT) devices, which streamline data collection processes significantly.

What is the primary function of the data bus in a computer system?
  • a)
    To specify the addresses of memory locations
  • b)
    To transfer control signals between components
  • c)
    To facilitate the movement of actual data between components
  • d)
    To manage the flow of data into and out of main memory
Correct answer is option 'C'. Can you explain this answer?

EduRev Humanities answered
The data bus is primarily responsible for transferring actual data between different components of a computer system. It allows data to flow in both directions, enabling the CPU to read from or write to memory as well as transfer data between other components, such as the hard disk. An interesting fact is that the width of the data bus (measured in bits) can significantly affect a computer’s performance, with wider buses allowing more data to be transferred simultaneously.

What is the primary distinction between data and information of computing?
  • a)
    Data is always organized, while information is unorganized.
  • b)
    Data refers to raw facts, whereas information is processed data that is meaningful.
  • c)
    Information can only be numerical, while data includes text and images.
  • d)
    Data is always stored, while information is temporary.
Correct answer is option 'B'. Can you explain this answer?

EduRev Humanities answered
The primary distinction between data and information lies in their nature and processing. Data consists of raw facts and figures that can be unorganized and unprocessed. In contrast, information is the result of processing that data, organizing it, and presenting it in a way that is meaningful and useful. For example, individual sales figures (data) become informative when aggregated into a report that shows total sales performance for a specific period. Understanding this difference is crucial in computing, as it underpins how computers function and manage information. Interestingly, the ability to transform data into information is a key aspect of data analysis, a field that has gained significant importance in today's data-driven world.

Which of the following is NOT considered an input device for computers?
  • a)
    Monitor
  • b)
    Keyboard
  • c)
    Mouse
  • d)
    Scanner
Correct answer is option 'A'. Can you explain this answer?

Learning Educators answered
A monitor is an output device, used to display information from the computer to the user. In contrast, input devices like keyboards, mice, and scanners are used to provide data and commands to the computer. Understanding the distinction between input and output devices is crucial for grasping how computer systems process information.

What is a key factor that allows for successful data recovery after accidental deletion?
  • a)
    The deleted data is immediately overwritten by new data.
  • b)
    The storage device is functioning perfectly.
  • c)
    The user has a backup of the deleted data.
  • d)
    The memory space marked as deleted has not been overwritten by new data.
Correct answer is option 'D'. Can you explain this answer?

EduRev Humanities answered
Successful data recovery relies on the condition that the memory space marked as deleted has not been overwritten by new data. When data is deleted, the system marks the space as available for new data without actually erasing it. If new data is written to that space, the original data may become irretrievable. This highlights the importance of acting quickly after accidental deletion. An interesting fact is that some data recovery tools can retrieve files even after they have been deleted for some time, as long as the space has not been reused.

What was one significant factor that contributed to the evolution of computing devices?
  • a)
    The increase in the size of mainframe computers
  • b)
    The development of magnetic tape storage
  • c)
    Processor miniaturization
  • d)
    The use of vacuum tubes
Correct answer is option 'C'. Can you explain this answer?

Learning Educators answered
Processor miniaturization has played a crucial role in the evolution of computing devices. By making processors smaller, manufacturers have been able to create more compact and efficient devices, from room-sized mainframes to modern smartphones. This advancement has allowed for greater portability and has enabled the proliferation of personal computing devices. Interestingly, the trend of miniaturization is often referred to as Moore's Law, which posits that the number of transistors on a microchip doubles approximately every two years, leading to more powerful and smaller computational devices over time.

What is a primary advantage of using microcontrollers in devices?
  • a)
    They can perform complex calculations at high speeds.
  • b)
    They are designed for specific tasks, making them smaller and more cost-effective.
  • c)
    They require extensive programming knowledge to operate.
  • d)
    They contain multiple CPUs for enhanced processing power.
Correct answer is option 'B'. Can you explain this answer?

Learning Educators answered
Microcontrollers are specifically designed for dedicated tasks, which allows them to be smaller and more cost-effective compared to general-purpose computing devices. This specialization means they can efficiently manage the functions of various appliances and gadgets without the need for extensive hardware, making them ideal for everyday applications like washing machines and remote controls. An interesting fact about microcontrollers is that they are often embedded in systems where space and power efficiency are critical, such as in wearable technology and IoT devices.

What is the primary function of a compiler in programming?
  • a)
    To execute code line by line
  • b)
    To convert high-level language code into machine code
  • c)
    To create a text file for source code
  • d)
    To detect and correct errors in the source code
Correct answer is option 'B'. Can you explain this answer?

Pj Commerce Academy answered
A compiler is a crucial tool in programming that translates code written in a high-level language into machine code, which can be executed by a computer. This process involves checking the code against the language's syntactic rules and, if correct, generating a machine-readable output. Unlike interpreters, which execute code line by line, compilers produce a complete object code file, allowing faster execution after the initial compilation. An interesting fact about compilers is that they can optimize the code during the compilation process, improving performance and efficiency when the program runs.

What is the primary function of the Arithmetic Logic Unit (ALU) within a CPU?
  • a)
    Managing memory allocation
  • b)
    Performing arithmetic and logic operations
  • c)
    Directing data flow between devices
  • d)
    Storing long-term data
Correct answer is option 'B'. Can you explain this answer?

Pj Commerce Academy answered
The Arithmetic Logic Unit (ALU) is responsible for executing all arithmetic and logic operations as specified by program instructions. It operates on binary numbers, performing tasks such as addition, subtraction, and logical comparisons. This fundamental role is crucial for the CPU's overall performance, enabling complex calculations and decision-making processes inherent in computing tasks. An interesting fact is that the efficiency of an ALU can significantly affect the speed of a computer system, as it directly influences how quickly operations are processed.

Chapter doubts & questions for Computer System - Computer Science for Class 11 2025 is part of Humanities/Arts exam preparation. The chapters have been prepared according to the Humanities/Arts exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Humanities/Arts 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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