Input and Output Chapter 6 PDF

Because learning changes everything. ® Input and Output Chapter 6 Computing Essentials 2025 O’Leary © McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC.  Learning Objectives 1. Define input. 2....

Because learning changes everything. ® Input and Output Chapter 6 Computing Essentials 2025 O’Leary © McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC.  Learning Objectives 1. Define input. 2. Describe keyboard entry, including types and features of keyboards. 3. Identify different pointing devices, including game controllers and styluses. 4. Describe scanning devices, including optical scanners, RFID readers, and recognition devices. 5. Recognize image capturing and audio-input devices. 6. Define output. 7. Identify different monitor features and types, including flat-panels and e-books. 8. Define printing features and types, including inkjet and cloud printers. 9. Recognize different audio and video devices, including portable media devices. 10. Define combination input and output devices, including multifunctional devices, VR head-mounted displays and controllers, drones, and robots. 11. Explain ergonomics and ways to minimize physical damage. © McGraw Hill 2  Introduction Have you ever wondered how information gets into your computer and comes out in a form you can use? Input devices convert what we understand into what the system unit can process. Output devices convert what the system unit has processed into a form that we Dragon Images/Shutterstock can understand. Access the text alternative for slide images. © McGraw Hill 3  What is Input? Any data or instructions entered into a computer. Input devices translate data into a form that the system unit can process. Some hardware input devices include: Keyboards. Mice. Pointing. Scanning. Image capturing. Audio-input. © McGraw Hill 4  Keyboard Entry Georgios Kollidas/Shutterstock Alexey Boldin/Shutterstock Traditional Keyboard Laptop Keyboard Virtual Keyboard Tero Vesalainen/Shutterstock Access the text alternative for slide images. © McGraw Hill 5  Pointing Devices Provide an intuitive interface by accepting pointing gestures and converting them into machine-readable input. Wide variety of devices such as: mouse, touch screen, and game controller. iHumnoi/Shutterstock Naked King/iStock/Getty Images Plus Cordless mouse with Touch pad wheel button Access the text alternative for slide images. © McGraw Hill 6  Touch Screen Can be touched with more than one finger. Stylus is a pen-like device. Used on tablets. Uses handwriting recognition software. ilkercelik/E+/Getty Images George Dolgikh/Shutterstock Stylus Multitouch screen Access the text alternative for slide images. © McGraw Hill 7  Mouse Types Optical mouse: Has no moving parts. Emits and senses light to detect mouse movement. Can be used on any surface. Wireless mouse: Battery operated. Uses radio waves or infrared light waves. Touch pads: Controls pointer by moving and tapping your fingers on the surface of the pad. © McGraw Hill 8  Gaming Controllers Provide input to computer games: Joysticks use pressure and direction of the stick. Gaming mice are similar Gaming mouse Joystick to a mouse but high precision. Gamepads use both hands. Motion sensing device Gamepad Motion-sensing control games by user device Boltenkoff/Shutterstock; Dario Lo Presti/Shutterstock; Aldeca movement. Productions/Shutterstock; ESOlex/Shutterstock Access the text alternative for slide images. © McGraw Hill 9  Scanning Devices Scanners convert scanned data into a form the system unit can process. Optical scanners: Flatbed scanners. ArtistGNDphotography/Getty Images Thomas Northcut/Photodisc/Getty Document Images 3D scanner scanners. Document scanner Portable scanners. 3D scanners. Access the text alternative for slide images. © McGraw Hill 10  Card Reader Interpret encoded information that is stored on debit, credit and identification cards. Magnetic card reader: Information read from strip when swiped through reader. Chip card reader: Igor Kardasov/Alamy Stock Photo Information read from a chip Contactless payment when inserted or held near the reader. Smart cards hold additional security information. Access the text alternative for slide images. © McGraw Hill 11  Bar Code Readers Contain photo-electric cells that scan or read bar codes or the zebra striped marks printed on product containers. UPC’s and QR Code readers. UPC are heavily used in grocery stores for automated checkout and inventory control. QR Codes are two dimensional Aunging/Shutterstock bar codes made up of a grid of Cell phone reading a bar code black and white spaces. Cell phones with app can also scan codes. Access the text alternative for slide images. © McGraw Hill 12  RFID Readers Radio-frequency identification. Tiny chips embedded in most anything contain electronically stored information that can be read using an RFID reader located several yards away. Tracking pets. Andrey_Popov/Shutterstock Update and control RFID reader inventories. Read passports. Access the text alternative for slide images. © McGraw Hill 13  Character & Mark Recognition Readers Recognize special characters and marks. Character and mark recognition devices. Magnetic-ink character recognition (M ICR). Used by banks to read encoded characters on checks. Optical-character recognition (OCR). Reads preprinted characters such as wand scanners. Anatoly Vartanov/123RF Optical-mark recognition (OMR). Wand reader Sense the presence of absence of marks used for test scoring. Access the text alternative for slide images. © McGraw Hill 14  Image Capturing Devices Create or capture original images. Digital Camera: Capture images digitally and caliNN and DiaNNA/Shutterstock store in memory. Digital camera Webcams: Capture images and send to a computer for broadcast over the Internet. Erlon Silva - TRI Digital/Moment/Getty Images Attached webcam Access the text alternative for slide images. © McGraw Hill 15  Audio-Input Devices Voice recognition systems: Use a microphone, sound card, and special software. Users can operate computers and create documents using voice commands. Included in many smart phones. Siri in iPhones. Cortana in Windows devices. Alexa in Amazon devices. Google Assistant in Android devices. © McGraw Hill 16  Output Processed data or information. Types of output: Text. Graphics/photos. Audio & video. Output devices: Monitors. Printers. Audio-output devices. © McGraw Hill 17  Monitors Known as screens or display screens, and present visual images of text and graphics. Features: Clarity. Resolution/pixels. tarczas/Shutterstock Dot pitch. Monitor resolution Contrast ratios. Active display area, or size. Aspect ratio. Access the text alternative for slide images. © McGraw Hill 18  Monitor Types Flat-panel monitors: Require less power to operate. Portable and thin. Most are backlit. Three types: Liquid Crystal Display (LCD). Older monitors. MishAl/Shutterstock Light Emitting Diode (LED). LCD monitor More advanced backlighting. Organic Light Emitting Diode (OLED). Thin layer organic compound that produces light. Access the text alternative for slide images. © McGraw Hill 19  E-book Readers An e-book is a traditional books printed in electronic form E-book readers are dedicated mobile devices for storing and displaying e-books. Use e-ink technology. Stephen Frost/Alamy Stock Photo Produce images that reflect light. Kindle. Kobo. © McGraw Hill 20  Other Monitor Types Digital/interactive whiteboards: Connects to a computer or project. Controlled using a special pen or even your finger. Gorodenkoff/Shutterstock Classrooms and corporate Angel Garcia/Bloomberg via boardrooms. Digital whiteboard Getty Images Flexible screen Flexible Screens: Allow a digital device to display on a non flat surface, including wrapped edges, curved monitors and foldable screens. Digital Projector: SaveLight Studio/Shutterstock Project the images from a traditional monitor Digital projector onto a screen or wall. Access the text alternative for slide images. © McGraw Hill 21  Printers Translates information that has been processed by the system unit. Features: Resolution. Color. Speed. DPI comparison Memory. Duplex printing. Connectivity. Access the text alternative for slide images. © McGraw Hill 22  Printer Types Ink-jet printers spray ink at a high speed. Reliable, quite and inexpensive. Laser printers uses a laser light beam to produce images. Fast, excellent quality. Personal or shared. Hugh Threlfall/Alamy Stock Photo 3D Printers create 3-D shapes Inkjet printer with a thin layer of material repeatedly until created. Additive manufacturing. Access the text alternative for slide images. © McGraw Hill 23  Other Printers Thermal printers use heat elements to produce images. Plotters are special purpose printers for producing specialized output. © McGraw Hill 24  Audio and Video Devices Translates audio information from the computer into sounds that people can understand. Speakers and headphones. Bluetooth Technology: Wireless technology. Used to connect to speakers Alexander Demyanenko/Shutterstock and headphones. Headphones Access the text alternative for slide images. © McGraw Hill 25  Combination Input and Output Devices Headsets: Combine a microphone and headphones. Multifunctional devices (MFD): Cost efficient but lower quality. Third of november/Shutterstock Headset All-in-one printers are a good example. Virtual Reality (VR): Artificial or simulated reality. Gorodenkoff/Shutterstock Virtual head-mounted displays Virtual reality head-mounted display and controllers. and controllers Access the text alternative for slide images. © McGraw Hill 26  Drones Drones or unmanned aerial vehicles (UAV): Take input from a controller and the output device is the drone. Very cost effective now. aerogondo/iStock/Getty Images Plus Drone Robots: Use cameras, microphones, and other sensors as inputs to perform an expanding range of Suwin/Shutterstock capabilities. Industrial robots assemble automobiles Access the text alternative for slide images. © McGraw Hill 27  Making IT Work for You ~ Headphones Style. Connection. Special Features. Maksym Bondarchuk/Shutterstock rvlsoft/Shutterstock Hugh Threlfall/Alamy Stock Photo Over-ear headphones Wireless in-ear Over-ear headphones headphones with active noise cancellation Access the text alternative for slide images. © McGraw Hill 28  Ergonomics Study of human factors related to things people us. Fit the task to the user to avoid: Eyestrain and headache. Back and neck pain. Repetitive strain injury. MaanasShutterstock Carpal tunnel syndrome. Ergonomic recommendations Access the text alternative for slide images. © McGraw Hill 29  Ergonomic Challenged Devices Portable computers are not set up for ergonomics. Cell phones: Pain in base of thumbs from being used to type on small screen keyboard. Tablets: Tablet hunch is caused by the user’s head being improperly aligned to the viewing surface. Laptops: Because the keyboard and monitor are connected, they cannot be set up ergonomically. © McGraw Hill 30  Careers in IT Technical writers prepare instruction manuals, technical reports, and other scientific or technical documents. Typically requires an associate’s or bachelor’s degree in: Communications. Journalism or. English. Specialization or familiarization with a technical field. Technical writers can expect to earn $55,000 to $69,000 annually. © McGraw Hill 31  A Look to the Future Internet of Things: Smartwatch: Can monitor and share your location. Chips embedded in most items, including clothing. Rawpixel.com/Shutterstock Smart grocery cart: Use grocery list to guide shopper through store and update total as items are put in the cart and process final bill. © McGraw Hill 32  Open Ended Questions 1. Define input, and input devices. 2. Describe the different types of keyboard, pointing, scanning, image capturing, and audio-input devices. 3. Describe output, and output devices. 4. Describe the features and different types of monitors and printers. 5. Describe audio output devices including Bluetooth technology. 6. Discuss combination input and output devices, including multifunctional devices, headsets, drones, robots, and virtual- mounted displays and controllers. 7. Define ergonomics, describe ways to minimize physical discomfort, and discuss design issues with portable computers. © McGraw Hill 33  Because learning changes everything. ® www.mheducation.com © McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC.