DC014 Lecture Note & Tutorial

Nonimpact Printers











• They are also used alongside software





programs such as AutoCAD® and other




drafting and technical drawing programs.



















































Plotter

Voice Output













• A voice output device is a component of a



computer that produces music, speech, or



other sounds, such as beeps.






• Three commonly used voice output devices are




1. Speakers




2. Headphones




3. Earbuds

Voice Output













• A voice output device is a component of a



computer that produces music, speech, or



other sounds, such as beeps.






• Three commonly used voice output devices are




1. Speakers




2. Headphones




3. Earbuds

Speaker














• Speakers allow you to hear music, voice, and






other audio (sounds).







• For speaker, a cable connects the speaker to a





port on the sound card.







• With wireless speakers, however, a transmitter






connects to the sound card, which wirelessly





communicates with the speakers.

Speaker














• Speakers allow you to hear music, voice, and






other audio (sounds).







• For speaker, a cable connects the speaker to a





port on the sound card.







• With wireless speakers, however, a transmitter






connects to the sound card, which wirelessly





communicates with the speakers.

Headphones and Ear Buds















• With headphones or earbuds, only the





individual wearing the headphones or





earbuds hears the sound from the computer.











































headphon ear buds



es

Headphones and Ear Buds















• With headphones or earbuds, only the





individual wearing the headphones or





earbuds hears the sound from the computer.











































headphon ear buds



es

Headphones and Ear Buds

















• The difference is that :






• headphones cover or are placed outside





of the ear, whereas





• earbuds, or earphones rest inside the ear





canal.







• Portable media players usually include a set




of earbuds.

Headphones and Ear Buds

















• The difference is that :






• headphones cover or are placed outside





of the ear, whereas





• earbuds, or earphones rest inside the ear





canal.







• Portable media players usually include a set




of earbuds.

Headset

















• A headset is a device that functions as both






• headphones and





• a microphone.







• Computer and smart phone users wear a





headset to free their hands for typing and





other activities while talking or





listening to audio output.

Headset

















• A headset is a device that functions as both






• headphones and





• a microphone.







• Computer and smart phone users wear a





headset to free their hands for typing and





other activities while talking or





listening to audio output.

Virtual Reality Headset

















• Virtual reality headset is a head-mounted





device that provides virtual reality for the





wearer.






• Two (2) output devices that can be found in





this virtual reality headset are:






1. display devices






2. speakers

Virtual Reality Headset

















• Virtual reality headset is a head-mounted





device that provides virtual reality for the





wearer.






• Two (2) output devices that can be found in





this virtual reality headset are:






1. display devices






2. speakers

Data Projectors
















• A data projector is a device that takes the




text and images displaying on a computer




screen and projects them on a larger screen




so that an audience can see the image




clearly.

Data Projectors
















• A data projector is a device that takes the




text and images displaying on a computer




screen and projects them on a larger screen




so that an audience can see the image




clearly.

Data Projectors
















• For example, many classrooms use data




projectors so that all students easily can see




an instructor’s presentation on the screen.






• An LCD projector, which uses liquid crystal




display technology, attaches directly to a




computer, and uses its own light source to




display the information shown on the




computer screen.

Data Projectors
















• For example, many classrooms use data




projectors so that all students easily can see




an instructor’s presentation on the screen.






• An LCD projector, which uses liquid crystal




display technology, attaches directly to a




computer, and uses its own light source to




display the information shown on the




computer screen.

Interactive Whiteboards












• An interactive whiteboard is a touch-





sensitive device, resembling a dry-erase





board, that displays the image on a




connected computer screen,





usually via a projector.

Interactive Whiteboards












• An interactive whiteboard is a touch-





sensitive device, resembling a dry-erase





board, that displays the image on a




connected computer screen,





usually via a projector.

Interactive Whiteboards














• A presenter controls the computer program





by clicking a remote control, touching the





whiteboard, drawing on or erasing the




whiteboard with a special digital pen and





eraser, or writing on a special tablet.

Interactive Whiteboards














• A presenter controls the computer program





by clicking a remote control, touching the





whiteboard, drawing on or erasing the




whiteboard with a special digital pen and





eraser, or writing on a special tablet.

Interactive Whiteboards















• Notes written on the interactive whiteboard





can be saved directly on the computer.






• Interactive whiteboards are used frequently





in classrooms as a teaching tool, during





meetings as a collaboration tool, and to





enhance delivery of presentations.

Interactive Whiteboards















• Notes written on the interactive whiteboard





can be saved directly on the computer.






• Interactive whiteboards are used frequently





in classrooms as a teaching tool, during





meetings as a collaboration tool, and to





enhance delivery of presentations.

Force-Feedback Game Controllers















• Force feedback is a technology that sends





resistance to the device in response to





actions of the user.






• For example, as you use the simulation





software to drive from a smooth road onto a





gravel alley, the steering wheel trembles or





vibrates, making the driving experience as




realistic as possible.

Force-Feedback Game Controllers















• Force feedback is a technology that sends





resistance to the device in response to





actions of the user.






• For example, as you use the simulation





software to drive from a smooth road onto a





gravel alley, the steering wheel trembles or





vibrates, making the driving experience as




realistic as possible.

Force-Feedback Game Controllers















• It can control movement and actions of a





player or object in computer games,





simulations, and video games.




• Example : Joysticks, wheels, gamepads, and





motion-sensing game controllers








































Game Pad Joystick Steering Wheel and




pedal

Force-Feedback Game Controllers















• It can control movement and actions of a





player or object in computer games,





simulations, and video games.




• Example : Joysticks, wheels, gamepads, and





motion-sensing game controllers








































Game Pad Joystick Steering Wheel and




pedal

Force-Feedback Game Controllers














• These devices also are used in practical




training applications such as in the military




and aviation.






• Some input devices such as a mouse, and




mobile devices such as a smart phone,




include tactile output that provides the user




with a physical response from the device.






• For example, users may sense a bumping




feeling on their hand while scrolling through




a smart phone's contact list.

Force-Feedback Game Controllers














• These devices also are used in practical




training applications such as in the military




and aviation.






• Some input devices such as a mouse, and




mobile devices such as a smart phone,




include tactile output that provides the user




with a physical response from the device.






• For example, users may sense a bumping




feeling on their hand while scrolling through




a smart phone's contact list.

2.4.4 Assistive Technology (AT) Input and Output

















Learning Outcomes:







• At the end of this lesson, students should be




able to:






• Explain the function of assistive





technology input and output

2.4.4 Assistive Technology (AT) Input and Output

















Learning Outcomes:







• At the end of this lesson, students should be




able to:






• Explain the function of assistive





technology input and output

Assistive Technology (AT) Input and Output


















• Inputting information into a computer





system requires an ability to use a keyboard





or mouse.






• People with physical disabilities effecting the





use of their hands and fingers typically have





difficulty utilizing a standard mouse or





keyboard; thus requiring computer access




AT to input information into a computer.

Assistive Technology (AT) Input and Output


















• Inputting information into a computer





system requires an ability to use a keyboard





or mouse.






• People with physical disabilities effecting the





use of their hands and fingers typically have





difficulty utilizing a standard mouse or





keyboard; thus requiring computer access




AT to input information into a computer.

Assistive Technology (AT) Input and Output

















Disabilities Assistive technologies






Hearing Voice output, Speech-to-text




impairments devices






Visual impairments Alternatives input options :





speech recognition software,




Braille writers, Magnifiers






Physical Alternative mouse option, Hand-





impairments Strapped Typing Aids, Mouth




Sticks, Key Guards, Alternative





Keyboards

Assistive Technology (AT) Input and Output

















Disabilities Assistive technologies






Hearing Voice output, Speech-to-text




impairments devices






Visual impairments Alternatives input options :





speech recognition software,




Braille writers, Magnifiers






Physical Alternative mouse option, Hand-





impairments Strapped Typing Aids, Mouth




Sticks, Key Guards, Alternative





Keyboards

Assistive Technology (AT) Input and Output


















• The most commonly used AT to assist people





access a computer include :






1. Typing aids,





2. Alternatives keyboards,






3. Alternatives mouse options,






4. Alternatives input options





5. Alternatives output options

Assistive Technology (AT) Input and Output


















• The most commonly used AT to assist people





access a computer include :






1. Typing aids,





2. Alternatives keyboards,






3. Alternatives mouse options,






4. Alternatives input options





5. Alternatives output options

Typing Aids

















• Examples of typing aids consists :







 hand-strapped typing aids






 mouth sticks







 head pointers







 key guards

Typing Aids

















• Examples of typing aids consists :







 hand-strapped typing aids






 mouth sticks







 head pointers







 key guards

Hand-Strapped Typing Aids















• Hand-strapped typing aids provide the user





with a rigid point option they can control





with the gross motor movement of their




hands and arms.







• They have inability to accurately target or





press keys on a standard keyboard





























Hand-Strapped Typing Aids

Hand-Strapped Typing Aids















• Hand-strapped typing aids provide the user





with a rigid point option they can control





with the gross motor movement of their




hands and arms.







• They have inability to accurately target or





press keys on a standard keyboard





























Hand-Strapped Typing Aids

Mouth Sticks















• A mouth stick is attaches to a retainer-like





bite plate that the user holds in his or her





mouth to operate the stick.




• User typically has little or no arm control.













































Mouth Sticks

Mouth Sticks















• A mouth stick is attaches to a retainer-like





bite plate that the user holds in his or her





mouth to operate the stick.




• User typically has little or no arm control.













































Mouth Sticks

Head Pointers















• A head pointer is strapped to the user's





head.






• Control with a head pointer is dependent on





the tightness of the strap, thus good head





pointer control usually correlates with





discomfort.





























Head Pointer and Stylus headband

Head Pointers















• A head pointer is strapped to the user's





head.






• Control with a head pointer is dependent on





the tightness of the strap, thus good head





pointer control usually correlates with





discomfort.





























Head Pointer and Stylus headband

Key Guards















• A key guard is a piece of plastic or wood with





holes corresponding to each key that is




placed over a keyboard to help isolate each





key.







• A typical user would be someone with an





inability to accurately target an individual key




on a keyboard due to a fine motor disability

Key Guards















• A key guard is a piece of plastic or wood with





holes corresponding to each key that is




placed over a keyboard to help isolate each





key.







• A typical user would be someone with an





inability to accurately target an individual key




on a keyboard due to a fine motor disability

Alternative Keyboards















• Alternative keyboards include :













1. Braille keyboards






2. Large key keyboards






3. Onscreen keyboards

Alternative Keyboards















• Alternative keyboards include :













1. Braille keyboards






2. Large key keyboards






3. Onscreen keyboards

Braille Keyboards












• Braille keyboards are simply standard keyboards





with stickers over each key that provide Braille





representation of that particular key.






• These keyboards provide access to people who





are blind and who are not touch typists.