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DATA & INFORMATION - Coggle Diagram
DATA & INFORMATION
computers process data(input) into info(output) & often store the data & resulting info for future use.
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keyboards
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have typing area that includes letters of the alphabet, numbers, punctuation marks & marks other basic keys.
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on laptop, you often use the same keys to type numbers & to show various areas on screen, switching a key's purpose by pressing a separate key first.
users can enter data via an on-screen keyboard/virtual keyboard, which is a keyboard that projects from a device to a flat surface.
mini keyboards, on-screen keyboards, virtual keyboards, laptop keyboard, desktop keyboard.
pointing device
an input device that allow user to control a small symbol on screen, called a pointer.
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laptops use a touchpad.
small, flat, rectangular pointing device that is sensitive to pressure & motion.
to control, use fingertip across the surface of the pad/can tap the pad's surface to imitate mouse operations, such as clicking.
voice & video input
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using smartphone, able to use your voice to send a text messages, schedule an appointment, dial a phone number, may opt for video calling.
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voice input
need a microphone.
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can talk into a headset, which contain both microphone & speaker.
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scanners
is a light-sensing input device that converts printed text & images into a form the computer can process.
popular type of scanner works in a manner similar to a copy machine, except that instead of creating a paper copy of the documents/photo
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output
output device
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displays
an output device that visually conveys text, graphics, video info.
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display for desktop
usually a monitor, can seperate, physical device.
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users have variety of output options to convey text, graphics, audio, video.