Computer Science Overview and Applications
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Questions and Answers

What technology replaced vacuum tubes in the second generation of computers?

  • Microprocessors
  • Transistors (correct)
  • Integrated circuits
  • Silicon chips
  • Which generation of computers introduced integrated circuits?

  • Fourth Generation
  • Third Generation (correct)
  • Second Generation
  • First Generation
  • What was a significant characteristic of the first generation of computers?

  • Low heat generation
  • Reliability due to transistors
  • Use of vacuum tubes (correct)
  • Creation of small devices
  • What was developed during the second generation of computers as an auxiliary storage device?

    <p>Magnetic disk</p> Signup and view all the answers

    What is a primary function of the Communication Layer in computing systems?

    <p>Connect computers to networks</p> Signup and view all the answers

    Which statement describes a drawback of vacuum tubes used in the first generation of computers?

    <p>They required heavy-duty air conditioning.</p> Signup and view all the answers

    What is an example of development software?

    <p>Microsoft.NET</p> Signup and view all the answers

    What was one benefit of integrated circuits over previous technologies?

    <p>Greater durability and reliability</p> Signup and view all the answers

    What is the primary focus of programming languages?

    <p>To express algorithms for execution on computers</p> Signup and view all the answers

    Which of the following best describes database and information retrieval?

    <p>Organizing and managing large collections of data</p> Signup and view all the answers

    What is the primary goal of computer security?

    <p>To protect systems from theft or damage</p> Signup and view all the answers

    Which principle is NOT part of the IT Code of Conduct?

    <p>Promote competitive advantage</p> Signup and view all the answers

    What type of memory disappears when the power is turned off?

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

    What does the code of conduct aim to address in computing ethics?

    <p>Establish guidelines for ethical behavior and decision-making</p> Signup and view all the answers

    Which layer of a computing system controls hardware execution?

    <p>System Software Layer</p> Signup and view all the answers

    What is a characteristic of external storage compared to main memory?

    <p>It is permanent until erased.</p> Signup and view all the answers

    Which of the following is NOT an input device?

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

    How does the size of RAM impact computer performance?

    <p>It affects the number of applications that can run simultaneously.</p> Signup and view all the answers

    What is the primary function of an operating system?

    <p>To manage computer resources and provide an interface for users.</p> Signup and view all the answers

    Which of the following accurately describes non-volatile memory?

    <p>Data remains intact even when the power is off.</p> Signup and view all the answers

    What type of software allows users to interact with the computer system?

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

    What is one of the main focuses of computer science?

    <p>The design and analysis of algorithms</p> Signup and view all the answers

    Which subfield of computer science deals with the integration of hardware systems?

    <p>Computer Architecture</p> Signup and view all the answers

    What is the purpose of artificial intelligence in computer science?

    <p>To solve complex problems with intelligent behavior</p> Signup and view all the answers

    What type of server is designed to handle requests from a large number of users simultaneously?

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

    Which of the following would NOT typically be studied in the field of Computer Networks?

    <p>The design of user interfaces</p> Signup and view all the answers

    Which of the following best describes a supercomputer?

    <p>The fastest type of computer capable of processing over one quadrillion instructions per second</p> Signup and view all the answers

    What does software engineering primarily involve?

    <p>The development and maintenance of software systems</p> Signup and view all the answers

    What defines an embedded computer?

    <p>A special-purpose computer that is a component of a larger product</p> Signup and view all the answers

    Which of the following describes bioinformatics?

    <p>Application of computing in biological research</p> Signup and view all the answers

    What aspect does the study of algorithms and data structures primarily address?

    <p>Solving problems in software systems</p> Signup and view all the answers

    Which of these is a characteristic of a thin client?

    <p>It resembles a desktop but has limited capabilities</p> Signup and view all the answers

    How is a special-purpose terminal typically categorized?

    <p>By its unique features intended for specific industries</p> Signup and view all the answers

    Which type of terminal is commonly used in retail stores for processing transactions?

    <p>POS terminal</p> Signup and view all the answers

    What is the primary function of a terminal?

    <p>To send data to and/or receive information from a server</p> Signup and view all the answers

    What is the significance of an embedded system having connectivity to a local network or the internet?

    <p>It classifies the device as an IoT (Internet Of Things) device</p> Signup and view all the answers

    Which field is primarily concerned with the limitations and capabilities of computing?

    <p>Theoretical Computer Science</p> Signup and view all the answers

    Study Notes

    Automobiles and Devices

    • Antilock brakes, airbag controllers, navigation systems, and GPS receivers are crucial safety and convenience features in modern automobiles.

    Process Controllers and Robotics

    • Remote monitoring systems, power monitors, and medical devices are essential for efficient operation and safety in industrial and healthcare environments.

    Computer Devices and Office Machines

    • Key peripherals include keyboards, printers, and fax and copy machines, integral to daily operations in offices.

    Computer Science Overview

    • Computer science encompasses computation and problem-solving, including the design and analysis of algorithms, program formalization, and computational device development.

    Subfields of Computer Science

    • Algorithms and Data Structures: Focuses on algorithm design, analysis, and the efficient use of data structures.
    • Computer Architecture: Involves the design and development of computing technology and effective hardware systems.
    • Computer Networks: Covers the design of software and hardware systems for managing computer networks.
    • Software Engineering: Encompasses methodologies for creating, implementing, testing, and maintaining software.
    • Artificial Intelligence and Robotics: Studies systems solving complex problems with intelligent behavior.
    • Bioinformatics: Applies computing methodologies to biological research, such as the human genome characterization.

    Types of Memory

    • Main Memory (RAM): Volatile memory stores data temporarily while applications are active. Size affects the number of simultaneous operations.
    • External Storage: Non-volatile, permanent storage for data and applications, measured in hundreds of gigabytes to terabytes.

    Input/Output Devices

    • Input Devices: Include keyboards, mice, microphones, cameras, and scanners, facilitating data entry.
    • Output Devices: Such as monitors, speakers, and printers, present processing results to users.

    Software Layer

    • Consists of instructions for computations and data management in various forms: system software, development software, and applications.

    System Software

    • Enables hardware execution and includes the Operating System (OS), essential for resource management and user interaction.

    Development Software

    • Tools used for creating other software (e.g., Microsoft .NET, Java SDK).

    Applications Software

    • Encompasses software that performs diverse tasks (e.g., web browsers, word processors, games).

    Communication Layer

    • Connects computers to networks for resource and information sharing.

    History of Computers

    • First Generation (1951-1959): Utilized vacuum tubes, requiring extensive maintenance and cooling due to heat generation.
    • Second Generation (1959-1965): Transistors replaced vacuum tubes, improving reliability and reducing size and cost.
    • Third Generation (1965-1971): Introduced integrated circuits, compacting multiple components into a single chip for greater efficiency and reliability.

    Servers

    • Mainframe: Powerful servers handling extensive simultaneous user requests.
    • Supercomputer: Fastest computers capable of processing over one quadrillion instructions per second.

    Terminals

    • Computers with limited processing power for communication with servers. Includes POS terminals, banking terminals, and self-service kiosks.

    Embedded Computers

    • Special-purpose computers integrated into larger products, classified as IoT devices when network-connected. Found in consumer electronics and home automation.

    Programming Languages

    • Facilitate the expression of algorithms for computer execution.

    Database Management

    • Focuses on organizing large data collections, including searching and pattern recognition.

    Computer Security

    • Protects systems from theft or damage, encompassing cyber security principles.

    Ethics of Computing

    • A code of conduct guides ethical behavior in computing, emphasizing human well-being, honesty, fairness, respect for intellectual property, and privacy.

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    Description

    Explore the fascinating world of computer science and its various applications in automobiles, robotics, and office devices. This quiz covers key concepts such as algorithms, computer architecture, and the critical technology used in everyday life. Test your understanding of how these systems impact efficiency and safety.

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