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Questions and Answers
The information processing cycle is inputting the data. What are they?
Which of the following is NOT considered an input device?
What type of input device allows pointing directly at the area where the cursor is displayed?
Which component is essential for a monitor to display images?
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What is the function of output devices?
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Which of the following is an example of an indirect pointer input device?
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What forms of output can result from processed information?
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Which device functions to project images onto a surface?
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What is the primary function of a printer?
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In what scenario would a plotter be typically used?
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What is a unique characteristic of blade technology in servers?
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How does a speaker interact with a computer?
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What is the primary concern associated with tightly packed blade server enclosures?
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Study Notes
Input/Output Technologies
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Input is the first step in the information processing cycle, where data is collected from external sources or within the system.
- Acquisition involves collecting data.
- Data Entry refers to entering acquired data into the system.
- Validation ensures the accuracy and correctness of the data entered.
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Input Devices are hardware components facilitating the transfer of data and control signals into a computer system.
- Direct Input Devices allow users to directly interact with the cursor in the display space, like a touch screen or light pen.
- Indirect Pointers, like trackballs or mouse, control a cursor indirectly but assist in manipulating data or storing data from other devices.
- Output involves transmitting processed information to the user, potentially manifested as print, audio, or video.
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Output Devices are peripheral hardware connected to the computer, transmitting processed information to the user.
- Monitor, also termed Video Display Terminal (VDT), displays the processed data visually on the screen, with varying screen sizes and resolution.
- Projector displays images onto a flat surface, receiving the image data from the computer and processing it through the video card.
- Printer generates hard copies of processed data from the computer, commonly used for text data, images, and more.
- Plotters are specialized printers producing hard copies of digitally rendered designs, typically used in engineering or architectural applications.
- Speakers connected to a computer's sound card, reproduce the sound created by the card, transforming audio data into audible signals.
Blade/Backplane Technologies
- Blade servers offer a space-saving, efficient solution for larger data centers.
- The blade server enclosure is generally more expensive than a traditional server and is rack-mountable.
- Blades within the enclosure share a single power supply, reducing energy consumption.
- To prevent overheating, efficient cooling mechanisms are essential for blade server enclosures.
- The backplane acts as a central connection point for each blade, offering access to shared components when inserted into the slots.
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Description
Test your knowledge on input and output technologies in computer systems. This quiz covers data acquisition, input devices, data validation, and the various output methods available. Challenge yourself on how these components interact in the information processing cycle.
