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Use the Slide Show view. What Is Input?. What is input ?. Data or instructions entered into memory of computer. Input device is any hardware component used to enter data or instructions. What Is Input?. What are the two types of input?. Data.

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    Presentation Transcript
    what is input
    What Is Input?
    • What isinput?
    • Data or instructions entered into memory of computer
    • Input device is any hardware component used to enter data or instructions

    Levi Krein

    Associate Professor, CIS

    what is input1
    What Is Input?
    • What are the two types of input?
    • Data
      • Raw unprocessed text, numbers, images, audio, and video
    • Instructions
      • Programs
      • Commands
      • User responses

    Levi Krein

    Associate Professor, CIS

    how is the keyboard divided
    How is the keyboard divided?
    • Typing area
    • Numeric keypad
    • Function keys, special keys that issue commands

    The keyboard is the most common input device on computers.

    Levi Krein

    Associate Professor, CIS

    the keyboard
    The Keyboard
    • What is theinsertion point?
    • Blinking vertical bar that indicates where next character you type will display
    • Pointerchanges location and shape as you move mouse or other pointing device
      • Block arrow
      • Pointing hand

    pointer

    insertion point

    Levi Krein

    Associate Professor, CIS

    the keyboard1
    The Keyboard
    • What is anergonomic keyboard?
    • Designed to minimize strain on hands and wrists
      • Ergonomics incorporates comfort, efficiency, and safety into design of items in workplace; user friendly devices

    Levi Krein

    Associate Professor, CIS

    what is a mouse
    What is amouse?
    • A pointing device that fits under palm of hand
    • Pointing device controls movement of pointer, also called mouse pointer
    • A mouse can be wired or wireless
    • An optical mouse senses light to detect mouse’s movement

    Levi Krein

    Associate Professor, CIS

    what is a trackball
    What is atrackball?
    • Stationary pointing device with a ball on its top
    • To move pointer, rotate ball with thumb, fingers, or palm of hand

    Levi Krein

    Associate Professor, CIS

    what is a touchpad or touch screen
    What is atouchpad or touch screen?
    • A monitor or small, flat, rectangular surface sensitive to pressure and motion

    Levi Krein

    Associate Professor, CIS

    what is a pointing stick
    What is apointing stick?
    • Apointing device shaped like pencil eraser positioned between keys on keyboard

    Levi Krein

    Associate Professor, CIS

    types of game controllers
    Types of game controllers
    • Joystickis vertical lever mounted on a base
    • Wheelis steering-wheel-type input device
      • Pedal simulates car brakes and accelerator

    Levi Krein

    Associate Professor, CIS

    what is pen input
    What is pen input?

    Levi Krein

    Associate Professor, CIS

    With pen input, you touch a stylus or digital pen on a flat surface to write, draw, or make selections

    what is voice input
    What is Voice Input?
    • Voice input is the process of entering data by speaking into a microphone
    • Voice recognition is the computer’s capability of distinguishing spoken words

    Levi Krein

    Associate Professor, CIS

    what is a midi input
    What is aMIDI input?
    • Audio input from a musical instrument (musical instrument digital interface).
    • External device, such as electronic piano keyboard, to input music and sound effects

    Levi Krein

    Associate Professor, CIS

    what is a portable keyboard
    What is aportable keyboard?
    • An input devices for mobile users
    • Full-sized keyboard you conveniently attach to and remove from PDA

    Levi Krein

    Associate Professor, CIS

    what is a docking station
    What is adocking station?
    • External device that holds mobile computer
    • Provides connections to peripherals

    Levi Krein

    Associate Professor, CIS

    what is a digital camera
    What is adigital camera?
    • Allows you to take digital pictures
    • Images viewable immediately on camera

    Levi Krein

    Associate Professor, CIS

    two factors affect the quality of digital camera photos
    Two factors affect the quality of digital camera photos:
    • Pixel(pictureelement) is single point in electronic image
      • Greater the number of pixels, the better the image quality
    slide22

    Camera Shopping?

    Like Consumer Reports, cnet reviews cameras, TVs, computers etc. Click to check out cnet.

    Levi Krein

    Associate Professor, CIS

    what is video input
    What isvideo input?
    • The process of entering full-motion mages into computer
    • Video capture cardis adapter card that converts analog video signal into digital signal that computer can use
    • Digital video (DV) camerarecords video as digital signals

    Levi Krein

    Associate Professor, CIS

    video input
    Video Input

    Video: Video Editing on Your Computer

    CLICK TO START

    what is a web cam
    What is a Web cam?
    • A digital video camera that displays its output on a Web page, it can:
    what is videoconferencing
    What isvideoconferencing?
    • Two or more geographically separated people who use a network or the Internet to transmit audio and video data
    • Whiteboard is another window on screen that can display notes and drawings simultaneously on all participants’ screens

    Levi Krein

    Associate Professor, CIS

    what is a scanner
    What is a scanner?
    • Light-sensing device that reads printed text and graphics
      • Used for image processing, converting paper documents into electronic images
    what is an optical reader
    What is anoptical reader?

    Next

    • A device that uses light source to read characters, marks, and codes and then converts them into digital data
    • Optical character recognition (OCR)reads characters & translates them into ASCII (bytes) characters
    • Optical mark recognition (OMR) reads hand-drawn pencil marks, such as small circles
    • Bar code scanner

    Levi Krein

    Associate Professor, CIS

    what is a turnaround document
    What is aturnaround document?
    • Document that you return to the company that sent it
      • Portion you return has information printed in OCR characters

    Levi Krein

    Associate Professor, CIS

    what is a bar code scanner
    What is abar code scanner?
    • Uses laser beams to read bar codes

    Levi Krein

    Associate Professor, CIS

    what is a bar code
    What is abar code?
    • Identification code that consists of a set of vertical lines and spaces of different widths
    • UniversalProductCode(UPC)

    Levi Krein

    Associate Professor, CIS

    what is a magnetic ink character recognition micr reader
    What is a magnetic-ink character recognition (MICR) reader?
    • Can read text printed with magnetized ink
    • Banking industry almost exclusively uses MICR for check processing

    Levi Krein

    Associate Professor, CIS

    other input devices
    Other Input Devices
    • What is anRFID reader?
    • Reads information on the tag via radio waves
      • Can be handheld devices or mounted in a stationary object

    Levi Krein

    Associate Professor, CIS

    what is a magnetic stripe card readers
    What is a Magnetic stripe card readers?
    • Devices that read the magnetic stripe on the back of cards such as:
    what is a data collection device
    What is adata collection device?
    • Obtains data directly at location where transaction or event takes place
      • Warehouses; outdoors; remote areas
    • Transmits (uploads) data over a network or Internet; wired or wireless

    Levi Krein

    Associate Professor, CIS

    what is a point of sale pos terminal
    What is apoint of sale (POS) terminal?
    • Records purchases, processes credit or debit cards, and updates inventory
      • Swipe credit or debit card through card readerc—creads customer’s personal data from magnetic strip

    Levi Krein

    Associate Professor, CIS

    terminals
    Terminals
    • What is anautomatic teller machine (ATM)?
    • Self-service banking machine that connects to host computer through network

    ATM crime

    Levi Krein

    Associate Professor, CIS

    what is biometrics
    What isbiometrics?
    • Authenticates person’s identity by verifying personal characteristic
    • Fingerprint scanner captures curves and indentations of fingerprint
    • Hand geometry system measures shape and size of person’s hand

    Levi Krein

    Associate Professor, CIS

    more examples of biometric technology
    More examples of biometric technology
    • Voice verification system compares live speech with stored voice pattern
    • Signature verification system recognizes shape of signature
    • Iris recognition systemreads patterns in blood vessels in back of eye
    • Biometric data is sometimes stored on smart card, which stores personal data on microprocessor embedded in card

    Levi Krein

    Associate Professor, CIS

    slide40

    CBS

    Biometrics

    Levi Krein

    Associate Professor, CIS

    what input devices are available for those with physical limitations
    What input devices are available for those with physical limitations?
    • Keyguardallows users to rest hands on keyboard without accidentally pressing keys
    • Head-mounted pointer controls pointer on screen
    • New developments includegesture recognition and computerized implant devices

    Levi Krein

    Associate Professor, CIS

    slide42

    Chapter 5 Complete

    Levi Krein

    Associate Professor, CIS