Computer Systems Overview
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Questions and Answers

What is the maximum storage capacity of a Compact Disk (CD)?

  • 4 to 16 Gigabytes (GB)
  • 700 Megabytes (MB) (correct)
  • Few Gigabytes
  • 128 Gigabytes (GB)

    • Which device uses a writing mechanism that causes characters to strike the paper?

  • LCD monitor
  • Non-impact printer
  • Impact printer (correct)
  • LED monitor

    • Which type of monitor is considered almost obsolete due to its size and low display quality?

  • CRT monitor (correct)
  • Plasma monitor
  • LED monitor
  • LCD monitor

    • What is the primary use of a memory card?

    <p>Storing pictures, audio, and video</p> Signup and view all the answers

    What is the storage capacity range of a Digital Versatile Disk (DVD)?

    <p>4 to 16 Gigabytes (GB)</p> Signup and view all the answers

    Which output device is known for creating hard copies of text and graphics?

    <p>Printer</p> Signup and view all the answers

    Which of the following statements about USB flash drives is true?

    <p>They are connected through a USB port.</p> Signup and view all the answers

    Which type of printer is the most commonly used impact printer?

    <p>Dot matrix printer</p> Signup and view all the answers

    What type of printer uses ink stored in a cartridge that is sprayed onto paper?

    <p>Inkjet printer</p> Signup and view all the answers

    Which of the following statements about laser printers is correct?

    <p>They use technology similar to photocopying.</p> Signup and view all the answers

    What is a primary use of a plotter?

    <p>Creating large engineering drawings</p> Signup and view all the answers

    Which of these ports is commonly used for connecting a monitor?

    <p>HDMI port</p> Signup and view all the answers

    What distinguishes expansion slots from ports?

    <p>Expansion slots allow for the installation of expansion cards.</p> Signup and view all the answers

    What type of plotter is used to print images?

    <p>Ink plotter</p> Signup and view all the answers

    Which of the following devices produces audio output?

    <p>Speaker</p> Signup and view all the answers

    What characteristic is true of non-impact printers compared to impact printers?

    <p>They create less noise during operation.</p> Signup and view all the answers

    What is the primary function of a Central Processing Unit (CPU)?

    <p>To execute instructions from computer programs</p> Signup and view all the answers

    Which component of the von Neumann architecture is responsible for arithmetic and logical operations?

    <p>Arithmetic and Logic Unit (ALU)</p> Signup and view all the answers

    What does the Program Counter (PC) register hold?

    <p>The memory address of the next instruction to be executed</p> Signup and view all the answers

    Buses in computer architecture serve what purpose?

    <p>To transmit data between different components</p> Signup and view all the answers

    Which of the following functions is NOT performed by the Control Unit (CU)?

    <p>Executing arithmetic operations</p> Signup and view all the answers

    Which expansion card is primarily used to enhance network connectivity?

    <p>Network card</p> Signup and view all the answers

    What is the role of the Memory Address Register (MAR)?

    <p>To hold the memory location of data to be accessed</p> Signup and view all the answers

    Which of the following statements about registers is correct?

    <p>All data must be stored in a register before processing.</p> Signup and view all the answers

    What does enterprise software engineering primarily focus on?

    <p>Automating processes and managing data in organizations</p> Signup and view all the answers

    Which type of engineering specifically involves the design and development of digital circuits?

    <p>Digital Hardware Engineering</p> Signup and view all the answers

    What role does system software play in a computer system?

    <p>It controls hardware components and facilitates interaction with application software.</p> Signup and view all the answers

    Which software type is primarily responsible for running applications and processing data directly?

    <p>Application Software</p> Signup and view all the answers

    What does integrated circuit (IC) design focus on?

    <p>Designing hardware components like CPUs and GPUs</p> Signup and view all the answers

    In hardware engineering, what does 'computer architecture' encompass?

    <p>The organization of computer systems and the CPU structure</p> Signup and view all the answers

    Which of the following is NOT a common type of hardware engineering?

    <p>Peripheral Device Design</p> Signup and view all the answers

    What is the main characteristic of embedded systems design?

    <p>Creating hardware systems within larger devices</p> Signup and view all the answers

    Which of the following is NOT a characteristic of high level languages?

    <p>They are typically less efficient than assembly language.</p> Signup and view all the answers

    What is the primary advantage of using procedural programming?

    <p>It makes debugging and modifying easier due to its modularity.</p> Signup and view all the answers

    Which of the following is NOT a fundamental element of structured programming?

    <p>Modification</p> Signup and view all the answers

    What type of programming language typically requires less storage and running time compared to high level languages?

    <p>Low level languages</p> Signup and view all the answers

    Which of the following statements is true about high level languages?

    <p>They utilize logical syntax that closely resembles human language.</p> Signup and view all the answers

    Which statement best describes modular programming?

    <p>It emphasizes dividing a program into smaller, reusable components.</p> Signup and view all the answers

    Which statement is an example of selection in programming?

    <p>if statement</p> Signup and view all the answers

    What is a key reason for the declining use of assembly language?

    <p>Assembly language is inherently more difficult to write than high level languages.</p> Signup and view all the answers

    What is the primary focus of object-oriented programming languages?

    <p>Managing and defining objects</p> Signup and view all the answers

    Which of the following is NOT a commonly used object-oriented programming language?

    <p>Assembly</p> Signup and view all the answers

    Which use case is most associated with low-level programming languages?

    <p>Operating System Development</p> Signup and view all the answers

    What activity can an object, like a vehicle, NOT typically perform?

    <p>Start its own development</p> Signup and view all the answers

    Which of the following is an important use of high-level programming languages?

    <p>Data Analysis and Science</p> Signup and view all the answers

    Which programming language feature could help in game development?

    <p>User interface design</p> Signup and view all the answers

    Which activity is essential for ensuring the performance of real-time systems?

    <p>Ensuring precise timing and responsiveness</p> Signup and view all the answers

    What is a significant benefit of using object-oriented programming?

    <p>It simplifies code by representing real-world entities.</p> Signup and view all the answers

    Match the following input/output devices with their functions:

    <p>Keyboard = Input device for text and commands Monitor = Output device for visual display Printer = Output device for hard copy Mouse = Input device for navigation</p> Signup and view all the answers

    Match the following components with their functions related to system buses and the fetch-decode-execute cycle:

    <p>Address Bus = Transmits address to memory Data Bus = Transfers data between components Control Bus = Carries control signals Fetch Cycle = Retrieves instruction from memory</p> Signup and view all the answers

    Match the following components of computer architecture with their descriptions:

    <p>CPU = The primary component that executes instructions RAM = Temporary storage used for data and programs currently in use Hard Drive = Permanent storage for operating systems and files Motherboard = Circuit board that connects all computer components</p> Signup and view all the answers

    Study Notes

    Computer Systems

    • Computer systems utilize various energy sources like coal, natural gas, nuclear, and renewables to generate electricity.
    • Renewable energy includes solar panels, wind turbines, and hydroelectric plants.
    • Electrical grids distribute electrical power.
    • Manufacturing systems automate processes, including robotics and assembly lines.
    • Hospital Information Systems manage hospital data.
    • Medical devices such as MRI machines and X-ray equipment are used.
    • Core computer components include input devices, output devices, the system unit and data storage.

    Input Devices

    • Input devices provide data to the computer.
    • Common input devices include keyboards, mice, microphones, scanners, barcode readers, digital cameras, and touch screens.
    • Keyboards allow users to input letters, numbers, and special characters.
    • Mice control the cursor or pointer on the screen.

    Output Devices

    • Output devices display information, such as text, graphics, and images.
    • Monitors are common output devices for displaying information.
    • Printers provide hard copies of information.
    • Plotters print large-scale drawings.
    • Speakers output audio.

    System Unit

    • The system unit is the main part of a computer.
    • It houses the motherboard, power supply, and drives.
    • The motherboard is the main circuit board.
    • It includes the microprocessor (CPU), memory, and expansion slots.

    Microprocessor (CPU)

    • The microprocessor is the main chip on the motherboard.
    • It controls all computer activities.
    • It is also known as the central processing unit (CPU).
    • It incorporates the control unit (CU), arithmetic logic unit (ALU), and registers.

    Storage Devices

    • Storage devices store programs and data.
    • Hard disks are common mass storage devices.
    • Portable storage devices include CDs, DVDs, memory cards, and USB flash drives.
    • Memory cards provide storage for images, audio, and videos.
    • Flash drives provide fast data transfer.

    Von Neumann Architecture

    • Von Neumann architecture describes the organization of a computer.
    • It involves storing instructions and data in the same memory.
    • The control unit (CU) fetches instructions, and the arithmetic logic unit (ALU) performs calculations.
    • Data paths connect various components, and buses facilitate communication.
    • System buses include control, data, and address buses.

    Data Transmission

    • Data transmission routes data between components.
    • Buses are pathways for data transfer.
    • Buses connect the CPU, memory, and input/output (I/O) devices.
    • Input and output devices are managed by the I/O controller.

    Memory Hierarchy

    • Memory hierarchy organizes memory levels from fast, small cache to slower, larger RAM.
    • Registers are high-speed storage areas in the CPU.
    • Cache memory is extremely fast, storing frequently accessed data.
    • RAM stores currently used programs and data.
    • Storage devices hold data not currently in use (hard disks, SSDs).

    Memory Types

    • Memory can be volatile (requires power, like RAM) or non-volatile (retains data, like ROM, flash memory).

    Software Engineering and Hardware Engineering

    • Software engineering systematically develops, operates, and maintains software.
    • Hardware engineering designs, develops, and tests physical components.
    • Software can be system software (like operating systems and compilers) or application software (like word processors and games).
    • Application software can include business software, productivity software, multimedia software, and educational software.

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    Computer Grade 9-1-18-41 PDF

    Description

    This quiz covers the fundamentals of computer systems, including energy sources for electricity generation, types of input and output devices, and the role of manufacturing systems and hospital information systems. Test your understanding of how various components and systems interact in computing and technology.

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