Computer Hardware Overview
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Questions and Answers

What does a Power Supply Unit (PSU) do?

  • Stores data long-term
  • Displays output from the computer
  • Converts electrical power for computer components (correct)
  • Processes data from input devices

    • An SSD is primarily used for temporary data storage.

    False

    What is a primary characteristic of centralized operating systems?

  • They are also referred to as tightly coupled systems. (correct)
  • They operate without any network connection.
  • They require frequent manual updates.
  • They are known for their decentralized nature.

    • Real-time operating systems are beneficial for situations with many events occurring in a short time.

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

    Name two examples of input devices.

    <p>Keyboard, mouse</p> Signup and view all the answers

    What do centralized operating systems rely on for security and maintenance?

    <p>A central location for managed servers.</p> Signup and view all the answers

    The Internet is many networks around the world connected together to form one huge _____ .

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

    Match the following types of computer usage with their examples:

    <p>Education = Online courses Business = Electronic invoicing Healthcare = Telemedicine Entertainment = Streaming services</p> Signup and view all the answers

    The centralized operating systems are known for their __________ functionality.

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

    Match the following terms with their descriptions:

    <p>LAN = Local Area Network Real-Time Systems = Systems that provide immediate output and are used for time-sensitive tasks Medical Imaging Systems = Systems specialized in capturing and processing images for medical purposes Centralized Operating Systems = Operating systems that depend on a central management location for security</p> Signup and view all the answers

    Which of the following is NOT a part of a computer's cooling system?

    <p>Power Supply Unit</p> Signup and view all the answers

    COPPER phone wires can be used to connect computers in a network.

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

    What is one potential future advancement in computing mentioned?

    <p>Artificial intelligence</p> Signup and view all the answers

    What is one of the primary roles of an operating system in terms of security?

    <p>Protecting against unauthorized access</p> Signup and view all the answers

    The operating system does not monitor the hardware for damage.

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

    Name one feature of operating systems that aids in multitasking.

    <p>Job Scheduling</p> Signup and view all the answers

    The operating system provides _______ that helps in managing resources such as memory and CPU.

    <p>management features</p> Signup and view all the answers

    Match the following features of operating systems with their descriptions:

    <p>Memory Management = Allocating memory to applications Security Features = Protecting user data integrity and confidentiality User Interface = Providing means for user interaction File System Abstraction = Organizing and managing files</p> Signup and view all the answers

    Which of the following is NOT a feature provided by an operating system?

    <p>Telecommunication services</p> Signup and view all the answers

    Firewalls are not considered part of the security measures for an operating system.

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

    What alerts does the operating system display during the error detection process?

    <p>Alerts related to external threats or damage to the hardware.</p> Signup and view all the answers

    Which of the following is NOT a mobile operating system?

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

    Mobile operating systems are typically user-friendly.

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

    Name one advantage of using an operating system.

    <p>Ensuring correct and efficient use of the computer's hardware.</p> Signup and view all the answers

    Mobile operating systems allow different applications to run ________.

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

    Match the following mobile operating systems with their characteristics:

    <p>Android OS = Customizable and open-source iOS = Closed ecosystem and user-friendly Symbian OS = Older mobile platform with limited support Windows Mobile OS = Integration with Windows applications</p> Signup and view all the answers

    Which of the following is considered a disadvantage of operating systems?

    <p>They can be complex and difficult to use</p> Signup and view all the answers

    Operating systems provide a platform for software development.

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

    List one common feature that mobile operating systems offer to users.

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

    What is multi-threading primarily defined as?

    <p>The ability of a process to execute multiple threads simultaneously.</p> Signup and view all the answers

    Multitasking and multi-threading are the same concepts.

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

    What are some examples of tasks that can run in threads while working in MS Word?

    <p>Auto-save, spell-check, grammar check.</p> Signup and view all the answers

    In multi-threading, threads share the same _____ and data.

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

    Match the following terms with their descriptions:

    <p>Thread = A single sequence stream within a process. Shared Memory = The process used by multiple threads for communication. Dispatcher = Programs that are scheduled in the CPU for execution. Efficiency = Refers to how processes manage task communication.</p> Signup and view all the answers

    A single process can consist of multiple threads.

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

    What is the term used for segments of a process in multi-threading?

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

    Which of the following statements is true regarding threads?

    <p>Threads communicate more efficiently than processes.</p> Signup and view all the answers

    Study Notes

    Computer Components

    • Hard Disk Drive (HDD) and Solid State Drive (SSD) serve as primary long-term storage devices.
    • Power Supply Unit (PSU) converts electrical power from outlets into a form usable by computer components.
    • Input devices such as keyboards, mice, and scanners allow users to enter data into computers.
    • Output devices like monitors and printers display or produce results from computer processes.
    • Cooling systems, including fans and liquid cooling, maintain safe temperatures for computer components.

    Networking and the Internet

    • A network consists of interconnected computers that share information and resources.
    • Computers connect through copper phone wires, fiber optic cables, and radio waves.
    • The Internet is a vast network of interconnected local networks around the globe.

    Modern Applications of Computers

    • Computers play vital roles in sectors such as education, business, healthcare, and entertainment.

    Future of Computing

    • Future advancements include artificial intelligence, quantum computing, and the growth of the Internet of Things (IoT).
    • Innovations in computing will significantly influence daily life and work environments.

    Computer Architecture

    • Definition: Computer architecture refers to the way different components of a computer are organized and work together.
    • Understanding different architectures helps differentiate various computing devices.

    Operating System Features

    • Ensures user data integrity and confidentiality through protection measures like login systems and firewalls.
    • Conducts error detection checks for threats or damage in both software and hardware.
    • Implements job scheduling to efficiently handle multitasking by determining application run order and time allocation.
    • Other vital features include memory management, file system abstraction, networking support, security, user interface provision, utilities, system services, and maintenance.

    Networking and Security Management

    • Centralized servers are used in small networks (LANs) for sharing files, applications, printers, and other resources.
    • Real-time operating systems are critical for applications requiring immediate responses, such as medical imaging and robotics.
    • Mobile operating systems (e.g., Android, iOS) must balance user-friendliness with battery efficiency.

    Advantages and Disadvantages of Operating Systems

    • Advantages include efficient hardware use, concurrent application management, user interfaces, security management, and resource allocation.
    • Complexities can make some operating systems challenging for users.

    Multi-Threading vs. Multi-Tasking

    • Multi-tasking refers to running multiple applications simultaneously, while multi-threading allows a single process to execute multiple threads concurrently.
    • Threads within a process can share resources such as code, files, and data, which improves efficiency during tasks like auto-saving and spell-checking in applications.

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    Related Documents

    Introduction to IT and COMPUTING Module 1-5 PDF

    Description

    This quiz covers essential components of computer hardware, including storage devices like HDDs and SSDs, power supply units, input and output devices, and cooling systems. Test your knowledge on these critical elements that make computers functional and efficient.

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