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Computer Classifications and Hardware

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Explores computer classifications and hardware functionality

  1. Explain the difference between special-purpose and general-purpose computers with examples.

  2. How do direct entry devices like OCR readers improve efficiency over keyboard entry?

  3. How does a touch screen function as an input device compared to a traditional mouse?

  4. How have output devices like printers evolved from dot matrix to 3D printers?

  5. Why is the socket type critical for CPU and motherboard compatibility?

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Ruwan Suraweera Changed status to publish June 21, 2025
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Answers and Descriptions:

  1. Answer: Special-purpose computers are designed for specific tasks (e.g., ATMs), while general-purpose computers handle various tasks (e.g., laptops).
    Description: Special-purpose computers are optimized for efficiency in specific applications, like ATMs for banking transactions, while general-purpose computers offer versatility for multiple uses, such as browsing, gaming, and productivity on laptops.

  2. Answer: OCR readers scan and convert text to digital data, reducing manual input time and errors compared to keyboards.
    Description: Optical Character Recognition (OCR) automates text input, enabling faster and more accurate data entry for applications like document digitization, unlike keyboards, which rely on manual typing prone to errors.

  3. Answer: A touch screen allows direct interaction with the display, while a mouse uses pointer-based navigation.
    Description: Touch screens provide intuitive input by detecting touch, improving user experience in devices like smartphones compared to the indirect control of a mouse, which requires additional hardware and navigation skills.

  4. Answer: Dot matrix printers use impact printing for basic text, while 3D printers create physical objects using additive manufacturing.
    Description: Printer evolution reflects advancements from simple text output to complex object creation, expanding applications to prototyping and manufacturing, with 3D printers enabling innovative designs in industries like engineering.

  5. Answer: The socket type ensures physical and electrical compatibility between the CPU and motherboard for effective communication.
    Description: Different CPUs require specific socket types to match pin configurations, ensuring proper data transfer and preventing hardware damage, critical for system stability and performance.

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Ruwan Suraweera Changed status to publish June 21, 2025
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