CH 6 Input & Output
Mouse
A __________ controls a pointer that is displayed on the monitor
Stylus
A _____________ is a Penlike device typically used with tablets and mobile devices. • Uses pressure to draw images on a screen.
Card Readers
Credit cards, access cards, id cards, debit cards typically have the user's name, some type of identification number, and signature on the card. Encoded information is often stored on the card and ________ ___________ interpret this encoded information.
System Unit
Electrical signals from the keyboard are sent to, and processed by, the _________ ________
Resolution
Images are formed on a monitor by a series of dots or pixels. _______________ is expressed as a matrix of these dots or pixels
QWERTY
Most keyboards use an arrangement of keys given the name ______________
Handwritting Recognition Software
Often a stylus interacts with the computer through ________________ _____________ _____________ which translates handwritten notes into a form the system unit can process.
E-Ink
__-____ produces images that reflect light like ordinary paper, making the display easy to read
Bar Code Readers
_____ _________ _________ Contain photoelectric cells that scan bar codes, the vertical zebra-striped marks, printed on product containers. Handheld wand readers or platform scanners.
Ink-Jet Printers
_____-______ _________ spray ink at high speed onto the surface of paper. The most widely used printers. Reliable, quiet, and relatively inexpensive.
Flat-Pannel Monitors
______-_________ ____________ are the most widely used type of monitor today and are much thinner and require less power to operate than other types of monitors
Touch Pad
_______ _____ is used to control the mouse pointer and to make selections, operates by moving or tapping your finger on the surface of a pad. Used on laptops and some types of mobile devices
Game Controllers
________ ____________ are Used with computer games. The most popular types are joysticks, gaming mice, gamepads, and motion sensing devices
Voice Recognition Programs
________ ______________ ___________ use a microphone, a sound card, and special software. These systems allow users to operate computers and to create documents using voice commands
OLED
________ monitors that are thinner and better power efficiency and contrast ratio replaced the LED monitor's back-lighting technology with a thin layer organic compound that produces light
Back & Neck Pain
_________ & _______ ________Adjust your chair for height and angle, and the chair should have good back support. The monitor should be at eye-level or slightly below eye level. Use a footrest to reduce leg fatigue
Touch Screen
_________ ________ Allow users to select actions or commands by touching the screen with a finger or penlike device.
Voice Over IP
_________ ________ ____is the transmission of telephone calls over computer networks. Also known as telephony, Internet telephony, and IP telephony. Uses the Internet rather than traditional communication lines to support voice communication
Input Devices
_________ __________ are hardware used to translate words, numbers, sounds, images, gestures, and actions that people understand into a form that the system unit can process.
Dot Pitch
_________ __________ is the distance between each pixel. The lower it is (the shorter the distance between pixels), the clearer the images produced.
Duplex Printing
_________ ____________ allows automatic printing on both sides of a sheet of paper.
3-D Scanner
_________ _____________ use lasers, cameras, or robotic arms to record the shape of an object
Light Emitting Diode (LED)
_________ ______________ ________ (_____) monitors are similar technology with a more advanced backlighting technology producing better-quality images, are slimmer, and are more environmentally friendly requiring less power and using less toxic chemicals to manufacture
Audio-Output Devices
_________-_________ ____________ translate audio information from the computer into sounds that people can understand. most commonly used are speakers and headphones.
Ultra High-Definition television (UHDTV)
__________ ________-____________ ______________ delivers a much clearer and more detailed wide-screen picture than regular HDTV. Users can readily freeze video sequences to create high-quality still images. Very useful for graphic artists, designers, and publishers
Smart Cards
__________ _________ include additional security in the form of a microchip embedded in the credit card
Virtual Keyboards
__________ __________ displays an image of a keyboard on a touch screen which functions as the actual input device, commonly used with tablets and mobile devices.
Aspect Ratio
__________ __________ indicates the proportional relationship between a display's width and height
Output Devices
__________ ___________ are any hardware used to provide or to create output. They translate information that has been processed by the system unit into a form that humans can understand. Most widely used types are monitors, printers, and audio-output devices.
Laser Printers
__________ ___________ have similar technology to that used in a photocopying machine Use a laser light beam to produce images with excellent letter and graphics quality. Faster than ink-jets and are used in applications requiring high-quality output.
Printer Memory
__________ ____________ is used to store printing instructions and documents waiting to be printed. The more memory in a printer, the faster it will be able to print large documents
Thumb Keyboards
__________ _____________ used on smartphones and other small mobile devices, designed primarily for communicating via texting and connecting to the web
Plotters
__________ are special-purpose printers for producing maps, images, and architectural and engineering drawings
Input
__________ is any data or instructions that are used by a computer
Audio-Input Devices
__________-________ __________ convert sounds into a form that can be processed by the system unit. The most common type is the microphone.
Eyestrain & Headache
___________ & ____________ Take a 15-minute break every hour or two. Keep everything you're focusing on at about the same distance
Wireless Mouse
___________ _______ uses radio waves or infrared light waves to communicate with the system unit
Optical Mouse
___________ ________ has no moving parts and is currently the most widely used
Portable Scanner
___________ __________ typically a hand held device that slides across the image, making direct contact
Contrast Ratio
___________ ___________ indicate a monitor's ability to display colors. It compares the light intensity of the brightest white to the darkest black. The higher the ratio, the better the monitor
Image capturing devices
___________ ____________ ___________ create or capture original images. These devices include digital cameras and webcams
Digital Projectors
___________ _____________ project the images from a traditional monitor onto a screen or wall which tend to be more portable and less expensive
Printer Resolution
___________ ________________ is the clarity of images produced and measured in dpi (dots per inch). The higher the dpi, the better the quality of images produced.
Headgear
___________ has earphones and three-dimensional stereoscopic screens
Output
___________ is processed data or information, and typically takes the form of text, graphics, photos, audio, and/or video
Virtual Reality Headgear & Gloves
____________ _________ ____________ & _________ is an artificial, or simulated, reality created in 3-D by computers. Creates a virtual or immersive experience by using specialized hardware that includes headgear and gloves.
Printer Speed
____________ _________ measured in the number of pages printed per minute
Scanning Devices
____________ __________ Convert scanned text and images into a form that the system unit can process
Pointing Devices
____________ ___________ Provide an intuitive interface with the system unit by accepting physical movements and gestures such as finger pointing or moving across a screen and converting them into machine-readable input, including the mouse, game controller, touch screen, and stylus.
Universal Product Codes
____________ ___________ ________ are widely used by retail stores to automate the processes to check out customers, or change product prices, and to maintain inventory records
Traditional Keyboards
____________ ___________ are full-sized keyboards which are used on desktops and larger computer and that include function, navigational, and numeric keypad.
Liquid Chrystal Display (LCD)
____________ ____________- _________ (____) is widely used for older monitors and is typically less expensive
Laptop Keyboards
____________ _____________ are smaller than traditional keyboards and widely used on laptop computers
Digital Whiteboards
____________ _______________ are specialized devices with a large display connected to a computer or projector.
Multitouch Screens
____________ __________touch with more than one finger, which allows for interactions such as rotating graphical objects with the hand and zooming in and out by pinching and stretching the fingers
Monitors
____________ are the most frequently used output device. Also known as display screen Present visual images of text and graphics. Output is often referred to as soft copy.
MaxiCode
____________ is widely used by the United Parcel Service (UPS) and others to automate the process of routing packages, tracking in transit packages, and locating lost packages.
Clarity
____________ refers to the quality and sharpness of the displayed images, and is composed of five elements
Printers
____________ translate information that has been processed by the system unit and presents the information on paper. output is often called hard copy
Character and Mark Recognition Devices
_____________ & _______ ________________ _____________ are scanners that are able to recognize special characters and marks. Specialty devices that are essential tools for certain applications. Three types are: • Magnetic-ink character recognition (MICR), Optical-character recognition (OCR), Optical-mark recognition (OMR)
Repetitive Strain Injury
_____________ ________ _________ is an injury that is caused by fast, repetitive work that can generate neck, wrist, hand and arm strain. Use ergonomic keyboards and take frequent short rest breaks and gently massage your hands.
Magnetic Card Reader
_____________ ________ __________ is the most common; encoded information is stored on a thin magnetic strip located on the back of the card
Active Display Area
_____________ ___________ _________ is measured by the diagonal length of a monitor's viewing area.
Optical Scanner
_____________ ___________ also known simply as a scanner, accepts documents consisting of text and/or images and converts them to machine-readable form.
Flatbed Scanner
_____________ ____________ is much like a copy machine, the image to be scanned is placed on a glass surface and the scanner records the image.
Headsets
_____________ combine the functionality of microphones and headphones
Ergonomics
______________ is the study of human factors related to things people use. It is concerned with fitting the task to the user rather than forcing the user to contort to do the task
Document Scanner
_______________ _____________ is similar to a flatbed scanner, can quickly scan multipage documents. Automatically feeds one page of a document at a time through a scanning surface
Keyboards
_______________ convert numbers, letters, and special characters that people understand into electrical signals
Multifunctional Devices
________________ ____________ typically combine the capabilities of a scanner, printer, fax, and copy machine into one unit
Telephones
________________ are input and output devices for receiving and sending voice communication
Radio-frequency identification tags
_________________ _________ ________ are tiny chips that can be embedded in most everything. They contain electronically stored information. They are used to track and locate lost pets; to monitor production and update inventory; and to record prices, product descriptions, and locations of retail items.
Robots
like drones, robotics have become relatively inexpensive with expanding capabilities Use cameras, microphones, and other sensors as inputs
Input Devices
pointing, scanning, image capturing, mice and keyboards are all examples of:
