Assemblers in Computer Science
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Questions and Answers

What does the word 'Computer' derive from?

  • Spanish word 'Computation'
  • Latin word 'Computare' (correct)
  • Italian word 'Computare'
  • French word 'Compter'

    • Computers are only used in developed countries.

    False

    Name two fields where computers are used.

    business, education

    The modern world is often referred to as the age of _______.

    <p>science and technology</p> Signup and view all the answers

    Which of the following is NOT mentioned as a use of computers?

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

    Match the following uses of computers with their respective fields:

    <p>Business = Financial transactions Education = E-learning Entertainment = Gaming and media Scientific Research = Data analysis</p> Signup and view all the answers

    Which of the following capabilities is associated with modern computers?

    <p>Creating documents</p> Signup and view all the answers

    What has the computer technology brought to the world?

    <p>enormous changes</p> Signup and view all the answers

    Which of the following is characteristic of a monochrome monitor?

    <p>Displays output in one color</p> Signup and view all the answers

    A color monitor displays output using less than sixteen colors.

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

    What does pixel refer to in the context of monitors?

    <p>Tiny dots that make up the images displayed on the screen.</p> Signup and view all the answers

    The measure of how close the pixels are on a monitor is referred to as the ______.

    <p>dot pitch</p> Signup and view all the answers

    What does refresh rate measure in a monitor?

    <p>The frequency at which the image is redrawn</p> Signup and view all the answers

    Match the following monitor types with their descriptions:

    <p>CRT Monitor = Uses cathode rays to display images LCD Monitor = Thin and light, uses liquid crystals Color Monitor = Displays output in multiple colors Monochrome Monitor = Displays output in one color</p> Signup and view all the answers

    Which device is considered the brain of the computer?

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

    What is the primary advantage of an LCD monitor over a CRT monitor?

    <p>Less power consumption and higher image quality.</p> Signup and view all the answers

    A pen drive is less popular than an optical storage device.

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

    The electron gun in a CRT monitor emits a beam of protons.

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

    What type of printer is a line printer?

    <p>non-impact printer</p> Signup and view all the answers

    The speed of a hard disk is measured in __________.

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

    Match the following devices with their types:

    <p>Printer = Output device Mouse = Input device SSD = Storage device Microprocessor = Processing device</p> Signup and view all the answers

    Which of the following is NOT an output device?

    <p>QR Code Scanner</p> Signup and view all the answers

    LED monitors are heavier and thicker than LCD and CRT monitors.

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

    The __________ memories lose their information when power is lost.

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

    Which of the following statements about a computer mouse is true?

    <p>The scroll button is used for scrolling.</p> Signup and view all the answers

    A joystick is primarily used for typing documents on a computer.

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

    What is the primary function of a scanner?

    <p>To scan drawings or documents and convert them into a digital format.</p> Signup and view all the answers

    The __________ is also known as an upside-down mouse due to its movable ball on top.

    <p>Track ball</p> Signup and view all the answers

    Match the input devices with their descriptions:

    <p>Mouse = Used for clicking, dragging, and scrolling Joystick = Used primarily for video games Touchpad = Touch-sensitive pad for laptops Scanner = Converts hard copies to digital format</p> Signup and view all the answers

    What technology does a Bar Code Reader (BCR) primarily use to capture data?

    <p>Beams of light</p> Signup and view all the answers

    A touchpad is only used in desktop computers.

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

    What are the three common buttons found on a computer mouse?

    <p>Left Button, Right Button, Scroll Button</p> Signup and view all the answers

    What is the primary function of an assembler?

    <p>To convert assembly language to machine language</p> Signup and view all the answers

    The output of an assembler is called source code.

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

    What does a compiler do?

    <p>A compiler converts high-level language into machine level language at once.</p> Signup and view all the answers

    An ________ processes high-level language by converting it line by line.

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

    Match the following types of language processors with their functions:

    <p>Assembler = Converts assembly code to machine code Compiler = Converts high-level code to machine code at once Interpreter = Converts high-level code to machine code line by line Utility Software = Maintains software and hardware functionality</p> Signup and view all the answers

    Which of the following is NOT a characteristic of a compiler?

    <p>Converts code line by line</p> Signup and view all the answers

    Utility software is primarily used for programming tasks.

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

    Name two programming languages that are traditionally interpreted.

    <p>Python and Perl</p> Signup and view all the answers

    Study Notes

    Book Overview

    • Edited by Shankar Adhikari and Nabin Kumar Khadka; layout designed by Khados Sunuwar.
    • Acknowledgment of contributions to textbook development by CDC.
    • Focus on activity-oriented, interesting, and learner-centered approach.
    • Encouragement of constructive feedback for continuous improvement.

    Content Structure

    • The textbook includes topics ranging from Computer Fundamentals to Programming in QBASIC, spanning various essential computer concepts.

    Computer Fundamentals

    • The modern world is characterized by the integration of science and technology, particularly computer technology.
    • Computers are integral in diverse fields: business, education, banking, scientific research, law, and entertainment.
    • The term "Computer" originates from the Latin "Computare," meaning 'to calculate'.

    Input Devices

    • Mouse: Invented by Douglas Engelbart in 1964; includes left, right, and scroll buttons for user commands.
    • Joystick: Primarily used for video games; equipped with multiple buttons for enhanced control.
    • Track Ball: A stationary device with a moveable ball for screen pointer control; commonly found in compact devices.
    • Touchpad: A touch-sensitive surface on laptops that acts as a pointing device, featuring left and right buttons.
    • Scanner: Digitizes documents and images, converting hard copies into digital format.
    • Barcode Reader (BCR): Reads information from barcodes, converting light reflections into data for computers.

    Output Devices

    • Monitors
      • Monochrome: Displays in one color (e.g., green, white).
      • Colour: Capable of displaying multiple colors; includes terms like pixels, screen resolution, dot pitch, and refresh rate.

    Monitor Types

    • CRT Monitor: Uses cathode rays; characterized by bulk and weight.
    • LCD Monitor: Light, thin, and energy-efficient; utilizes liquid crystals for image display.
    • LED Monitor: Known for its brightness and quality; heavier and thicker compared to LCDs.

    Memory and Storage

    • Volatile Memory: Loses data when power fails.
    • Storage Devices: Include tools like hard disks, SSDs, and USB drives for data preservation.

    Programming Fundamentals

    • Assembler: Converts assembly language into machine code; utilizes mnemonic code for easier programming.
    • Compiler: Translates high-level language into machine code; highlights errors during the process.
    • Interpreter: Processes high-level language line by line; stops for errors and requires re-execution from the start.

    Utility Software

    • Service programs designed for maintenance tasks related to computer software and hardware.

    Key Concepts

    • Understanding screen resolution and refresh rates is essential for display quality.
    • Familiarity with different storage types and their characteristics aids in effective data management.
    • Knowledge of input/output devices enhances user interaction with computers.

    Quiz and Matching

    • Exercises provided for reinforcement of key concepts, such as matching input/output devices, identifying the brain of a computer, and recognizing impact printers.

    Practical Applications

    • A strong grasp of computer fundamentals is critical for success in modern educational and professional environments.

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    Related Documents

    RS3668_COMPUTER-SCIENCE-GRADE-9 (1).pdf

    Description

    This quiz focuses on the role of assemblers as crucial language processors that translate assembly language into machine language. Learn about mnemonic codes, source programs, and the conversion process that eases programming complexities through assembly language. Test your knowledge on the fundamentals of assemblers.

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