Computer Systems and Virtual/Augmented Reality
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Questions and Answers

What is the primary function of Virtual Reality (VR)?

  • To enhance physical environments with digital information
  • To create a simulated 3D environment (correct)
  • To track health metrics through wearable devices
  • To provide real-time navigation assistance

    • Which of the following is NOT a typical application of Virtual Reality?

  • Military training
  • Gaming
  • Augmented Reality gaming (correct)
  • Education

    • What distinguishes Augmented Reality (AR) from Virtual Reality (VR)?

  • AR creates fully immersive experiences while VR enhances real environments.
  • AR requires VR headsets for interaction, while VR does not.
  • AR simulates environments while VR overlays digital information.
  • AR overlays digital content onto the real world whereas VR blocks out physical surroundings. (correct)

    • Which device is primarily used in Virtual Reality experiences?

    <p>VR headset</p> Signup and view all the answers

    What type of computer is considered nonportable?

    <p>Desktop computer</p> Signup and view all the answers

    Which of the following is an example of Augmented Reality?

    <p>IKEA Place</p> Signup and view all the answers

    What best describes a server in terms of computer system types?

    <p>A multiple-user computer system</p> Signup and view all the answers

    What category do smartphones fall under?

    <p>Portable computers</p> Signup and view all the answers

    What characterizes Read-Only Memory (ROM)?

    <p>It provides permanent storage for data and instructions.</p> Signup and view all the answers

    Which type of storage is considered nonvolatile?

    <p>Read-Only Memory</p> Signup and view all the answers

    What is a primary advantage of secondary storage over memory?

    <p>Greater capacity and nonvolatility.</p> Signup and view all the answers

    Which of the following is not a common form of secondary storage?

    <p>Cache memory</p> Signup and view all the answers

    What is the primary use of magnetic tape in secondary storage?

    <p>Storing backups and archives.</p> Signup and view all the answers

    What distinguishes optical storage devices like DVDs and Blu-rays?

    <p>They use reflective surfaces to read/write data.</p> Signup and view all the answers

    How does secondary storage interact with the computer's CPU?

    <p>Data is transferred through input/output channels.</p> Signup and view all the answers

    What is a key benefit of using magnetic tape for data storage?

    <p>Its low cost per gigabyte and longevity.</p> Signup and view all the answers

    What is a primary benefit of cloud storage for businesses?

    <p>It is a convenient and scalable option.</p> Signup and view all the answers

    Which of the following is NOT a common input device for personal computers?

    <p>Hard Drive</p> Signup and view all the answers

    Which cloud storage service is specifically designed for enterprises?

    <p>Amazon S3</p> Signup and view all the answers

    What factor should organizations consider when selecting input and output devices?

    <p>Their business goals</p> Signup and view all the answers

    Which of the following is considered a biometric input device?

    <p>Fingerprint scanner</p> Signup and view all the answers

    What type of card reader is commonly used for contactless payments?

    <p>Contactless Payment Cards</p> Signup and view all the answers

    Which of the following devices allows users to scan barcodes?

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

    What is a common feature of cloud-based storage services?

    <p>Accessed over the internet remotely.</p> Signup and view all the answers

    What is the primary function of a 3D printer compared to traditional printers?

    <p>It creates three-dimensional objects from models.</p> Signup and view all the answers

    Which of the following is NOT a key advantage of using a 3D printer?

    <p>Speed of printing sheets of paper</p> Signup and view all the answers

    What does haptic technology primarily enhance in user interfaces?

    <p>Simulation of touch sensations</p> Signup and view all the answers

    Which of the following devices commonly utilizes haptic feedback?

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

    What is one application of haptic technology in gaming?

    <p>Providing feedback through gaming controllers</p> Signup and view all the answers

    Which of the following technologies is associated with simulating user experiences in a digital environment?

    <p>Virtual Reality</p> Signup and view all the answers

    What aspect does haptic technology add to digital devices to make them more intuitive?

    <p>Touch sensations replication</p> Signup and view all the answers

    Which feature of 3D printing allows for the creation of unique and personalized items?

    <p>Customization of design</p> Signup and view all the answers

    What is virtualization primarily used for in a server environment?

    <p>To logically divide resources of a single physical server</p> Signup and view all the answers

    Which of the following best describes a data center?

    <p>A climate-and-access-controlled location housing computer hardware</p> Signup and view all the answers

    What is a critical construction consideration for data centers?

    <p>Lower energy rates and milder climate</p> Signup and view all the answers

    Why is careful selection of computer hardware important for organizations?

    <p>To meet the evolving needs of the organization</p> Signup and view all the answers

    In virtualization, how does each logical server function?

    <p>Like a dedicated physical machine</p> Signup and view all the answers

    Which factor is NOT typically considered for the efficient operation of a data center?

    <p>Design of internal office spaces</p> Signup and view all the answers

    What is the main benefit of using virtualization in IT infrastructure?

    <p>More efficient resource utilization</p> Signup and view all the answers

    Which is a potential disadvantage of virtualization?

    <p>Resource contention between virtual machines</p> Signup and view all the answers

    Study Notes

    Virtual Reality (VR)

    • Creates a computer-generated 3D environment that blocks out the physical world
    • Users wear headsets and devices like gloves and vests to interact
    • Applications include gaming, education, military training

    Augmented Reality (AR)

    • Overlays digital content onto the real world
    • Provides contextually relevant information
    • Examples include Snapchat filters, IKEA Place, Pokémon GO

    Computer System Types

    • Single-User Computers:
      • Portable: Wearable computers, smartphones, laptops, tablets
      • Non-Portable (Stationary): Desktop computers
    • Multiple-User Computers: Servers, Mainframes, Supercomputers

    Read-Only Memory (ROM)

    • Provides permanent storage for data and instructions, it is nonvolatile
    • Stores essential programming for computer startup
    • Used in gaming system cartridges (e.g., Gameboy)

    Secondary Data Storage Devices

    • Store large amounts of data and programs more permanently than memory
    • Offer advantages over memory: non-volatility, greater capacity, cheaper cost
    • Not directly accessible by the CPU, data is transferred to primary storage first
    • Common forms: magnetic (hard disk drives), optical (CD, DVD, Blu-ray), solid state (SSD, USB)

    Magnetic Secondary Storage Devices

    • Magnetic Tape:
      • Sequential secondary storage medium
      • Mainly for backups and archives
      • Advantages: lower cost per gigabyte, longer lifespan (10-20 years)

    Storage as a Service (Cloud Storage)

    • Remotely hosted storage accessed over the internet
    • Data storage service providers rent space to individuals and organizations
    • Convenient and scalable option for businesses
    • Services: Apple iCloud, Dropbox, Google Drive, Microsoft OneDrive (consumers), Amazon S3 (enterprises)

    Input and Output Devices

    • Allow users to provide data and instructions to the computer and receive results
    • Part of a computer's user interface
    • Selection should be based on organizational goals and specialized functions

    Input Devices (Common Personal Computer)

    • Keyboard and mouse

    Input Devices (Motion Sensing)

    • Motion-sensing input devices

    Input Devices (Scanning Devices)

    • Scanning devices

    Input Devices (MICR)

    • Magnetic Ink Character Recognition (MICR) devices

    Input Devices (Card Readers)

    • Magnetic Stripe Cards
    • Chip Cards
    • Contactless Payment Cards

    Input Devices (Other)

    • Bar-code Scanners
    • Radio Frequency Identification (RFID) Devices
    • Pen Input Devices
    • Touch Screens
    • Biometric Devices (Iris Scanner, Fingerprint Scanner, Heart-Rate Monitor)

    Output Devices

    • 3D Printers:
      • Create objects from three-dimensional models
      • Key advantages: prototyping, customization

    Multimedia Technologies

    • Haptic Technology
    • Virtual Reality
    • Augmented Reality

    Haptic Technology

    • Simulates touch sensations for enhanced user interactions
    • Replicates tactile sensations, making user interfaces more intuitive
    • Applications: smartphones, VR gloves, gaming controllers (PS5 DualSense)

    Virtual Server

    • Virtualization: logically dividing resources of a physical server to create multiple logical servers
    • Each logical server acts as an independent machine

    Data Center

    • Climate-and-access-controlled building(s) housing computer hardware for organization's data and information services
    • Construction considerations: reduced energy use, location with milder climates and lower costs

    Summary

    • Careful selection of computer hardware is critical for meeting the evolving needs of organizations and their information systems

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    Related Documents

    Lecture 2 - Hardware.pdf

    Description

    This quiz explores the concepts of Virtual Reality (VR) and Augmented Reality (AR), as well as various types of computer systems. Learn about their functions, applications, and the role of Read-Only Memory (ROM) in computers. Test your knowledge on data storage devices and the differences between single-user and multiple-user systems.

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