Unit 1 - Computer Basics
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Questions and Answers

What innovation did Dr. Hollerith implement to speed up the collation of census data?

  • Wireless transmission
  • Computers
  • Electric counters
  • Punched cards (correct)
  • What was the primary reason for the formation of the International Business Machines Corporation (IBM)?

  • To invest in health technology
  • To focus on software development
  • To merge several companies for greater efficiency (correct)
  • To expand into environmental technology
  • Which of the following was NOT a contribution of Dr. Hollerith to the field of data processing?

  • Developing a more efficient census process
  • Founding a company for tabulating machines
  • Creating software for data analysis (correct)
  • Refining punched card equipment
  • In what significant way did technology impact employment during the Second World War?

    <p>Creation of jobs in computing and engineering (D)</p> Signup and view all the answers

    How did the development of fast calculating machines impact the technology industry post-World War II?

    <p>It led to significant advancements in calculator technology. (D)</p> Signup and view all the answers

    What aspect of Dr. Hollerith's career reflects the environmental impact of technology?

    <p>The industrial boom due to his innovations (D)</p> Signup and view all the answers

    What health risks are commonly associated with prolonged computer usage in modern contexts?

    <p>Repetitive strain injuries (D)</p> Signup and view all the answers

    What distinctive characteristic separates hardware from software in computing terms?

    <p>Hardware refers to physical components, whereas software consists of programs and applications. (C)</p> Signup and view all the answers

    What characteristic distinguishes computers from humans according to the content?

    <p>Computers can perform calculations without fatigue. (A)</p> Signup and view all the answers

    Which technology was not used in the first generation of computers?

    <p>Transistors (C)</p> Signup and view all the answers

    What impact does automation primarily have on employment, based on the content?

    <p>It may replace jobs that involve monotonous tasks. (D)</p> Signup and view all the answers

    How do computers maintain reliability over long periods?

    <p>They can operate indefinitely without data loss. (D)</p> Signup and view all the answers

    What is a potential environmental impact of technology as suggested by the content?

    <p>Significant energy consumption from heat emissions. (D)</p> Signup and view all the answers

    What type of input method was primarily used in the first generation of computers?

    <p>Punched cards (D)</p> Signup and view all the answers

    Which of the following is a limitation of computers mentioned in the content?

    <p>They depend entirely on human programming. (B)</p> Signup and view all the answers

    What was a significant drawback of the first generation of computers?

    <p>They emitted large amounts of heat and required cooling. (B)</p> Signup and view all the answers

    What is one of the key advantages of using computers for students?

    <p>They help develop logical thinking and problem-solving skills. (C)</p> Signup and view all the answers

    Which of the following is a health risk associated with prolonged computer usage?

    <p>Back pain and nerve injuries (A)</p> Signup and view all the answers

    What is one of the environmental impacts of computer manufacturing?

    <p>Use of hazardous chemicals that contribute to pollution (C)</p> Signup and view all the answers

    How has automation affected employment levels?

    <p>It has contributed to an increase in unemployment. (B)</p> Signup and view all the answers

    Which of the following statements about computer software is correct?

    <p>Software requires hardware to function. (A)</p> Signup and view all the answers

    Which of the following contributes to the environmental issue of electronic waste?

    <p>The lifecycle of computers leading to discarded units. (A)</p> Signup and view all the answers

    What type of computers can be classified as personal computers?

    <p>Laptops and desktops (B)</p> Signup and view all the answers

    What is the primary function of computer hardware?

    <p>To execute software programs and manage applications (D)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of computer games?

    <p>They promote physical activity. (A)</p> Signup and view all the answers

    Which of the following health issues is often linked to extensive computer use?

    <p>Repetitive strain injuries (B)</p> Signup and view all the answers

    Study Notes

    Unit 1 - Computer Basics

    • Learning Objectives: Learn the concept of a computer system, its evolution, classifications, applications, limitations, and its relationship to humans. Understand computer components.

    1. Introduction

    • Computers are used in various fields, including engineering, medicine, and daily life.
    • The word "computer" comes from "compute," meaning to calculate.

    1.2 Evolution of Computers

    • Early computers were large and complex.
    • Early computing concepts were based on counting systems and devices like the abacus.
    • Later inventions included adding machines, the Pascaline and Napier's bones.
    • Modern computers have evolved from vacuum tubes to incredibly small integrated circuits.

    1.3 Characteristics of Computers

    • Speed: Computers perform calculations and tasks quickly.
    • Accuracy: Computers are highly accurate in performing calculations.
    • Efficiency: Computers are efficient at processing substantial amounts of information.
    • Storage Capacity: Computers store vast amounts of information.
    • Versatility: Computers perform many different types of tasks.

    1.4 Computer Generations

    • First Generation: Vacuum tubes, punched cards.
    • Second Generation: Transistors, smaller size.
    • Third Generation: Integrated circuits, increased speed, and reliability.
    • Fourth Generation: Very Large Scale Integration (VLSI), microprocessors, personal computers.
    • Fifth Generation: Artificial intelligence, emphasis on problem-solving systems.

    1.5 Classification of Computers

    • Supercomputers: Powerful, used for complex calculations (high-speed).
    • Mainframes: Powerful, used for large organizations handling vast amounts of data.
    • Minicomputers: Medium-sized computing power for medium-sized tasks or smaller businesses.
    • Microcomputers: Small-scale computers that are less expensive and are typically designed for use by single users, including desktops, laptops and personal digital assistants (PDAs).

    1.6 Computer Applications

    • Scientific research: Used in complex calculations, scientific modeling, and simulations.
    • Engineering and design: Used in computer-aided design (CAD) and computer-aided manufacturing (CAM).
    • Business: Used for managing data, accounting, payroll, and other business functions.
    • Education: Used for educational purposes, such as administering tests, providing information, assisting in learning, allowing for effective classroom management.
    • Medicine: Used in diagnostics, patient monitoring, and research.
    • Entertainment: Used for games, movies, and other forms of entertainment.

    1.7 Limitations of Computers

    • Environmental Concerns: Some hazardous materials might be used for computer manufacturing or disposal.
    • Failure Potential: Computers, like any physical device, can break down.
    • Space requirements: The space used to house obsolete computers can be sizable.
    • Privacy concerns: Security breaches are a potential concern with a computer.
    • Ergonomic issues: Excessive computer use can lead to health problems.
    • Disputes of employment: The increase of efficiency in doing work could displace some human workers.

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    Description

    Explore the fundamentals of computer systems, their evolution, and characteristics in this quiz. Understand how computers have transformed over time and their impact on various fields. Test your knowledge about computer components and their applications.

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