Uthaya Chap 05 Input


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Uthaya Chap 05 Input

  1. 1. What Is Input?<br />Input is any data or instruction entered into the memory of a computer.<br />By:UthAyA<br />
  2. 2. Difference Among a Program, a Command, and a User Response<br />*Program is a series of related instructions that tells a computer what tasks to perform and how to perform them.<br />*Command is an instructions that causes a program to perform a specific action.<br />*User Response replying to a question displayed by a program to perform certain actions.<br />
  3. 3. ->Keyboard is an input that contains keys users press to enter data and instructions into a computer.->Most keyboard also have function keys programmed to issues commands ; toggle keys that switch between two states when press; and keys used to move the insertion point, or cursor , on the screen.<br />-> Input Device is any hardware component that allows users to enter data and instructions(program, command, and user response)<br />
  4. 4. Mouse is a pointing device that fits under the palm of your hand.<br />Optical mouse -> emit and sense light to detect the mouse’s movement.<br />Laser mouse -> uses a laser and is more expensive than an optical mouse.<br />Air mouse -> allows you to control objects, media players, and slide shows by moving<br /> the mouse in predetermined directions through the air.<br />Wireless/Cordless mouse -> transmit data using wireless technology.<br />
  5. 5. Touch screen is a touch-sensitive display device.Touch screen that recognize multiple points of contact at the same time are known as multi-touch.<br />*(Kiosk is a freestanding computer that usually includes a touch screen)<br />*(Microsoft Surface is a 30-inch tabletop display that allows one or more people to <br /> interact with screen) <br />Touch-sensitive pad is an input device thatenable users to scroll through.<br />
  6. 6. Various Types Of Pen Input and Other Types of Input for Smart Phone.<br />*Pen input is stylus or digital pen that u touch on a flat surface, such as a screen on a<br /> monitor, mobile device and a signature capture pad.<br />*Stylus is a small metal or plastic device that looks like a tiny ink pen but uses<br /> pressure instead of ink.<br />*Digital pen is features electronic erasers and programmable buttons.<br />*Handwriting recognition software is a program that translate handwritten letters <br /> and symbols into characters a computer or mobile device can process.<br />*Signature capture pad captures signatures written with a stylus or pen attached to a device.<br />
  7. 7. *Gamepad controls the movement and actions and object.<br />*Joystick is a handheld vertical lever that you move to control a simulated vehicle player.<br />*Wheel is a steering-wheel-type device that you turn to stimulate driving a vehicle.<br />*Light gun is used to shoot targets as you pull the trigger on the weapon.<br />*Dance pad is an electronic device, divided into panels, that users press with their feet.<br />*Motion sensing game controllers such as Wii Remote guide on screen elements by moving a handheld input device in predetermined direction through the air. <br />
  8. 8. How Does Resolution Affect the Quality of a Picture Captured on a Digital Camera?<br />*Resolution is the number of horizontal and vertical pixels in a display device.<br />*higher the resolution the better the picture quality.<br />How Are Voice Recognition, Web Cams, and Video Conferencing Used? <br />*Voice recognition also called speech recognition is the<br /> computer ‘s capability of distinguishing spoken words.<br />*Web cam enable users to capture video and still image <br /> and then send or broadcast over the internet.<br />*Video conference enable two or more users to transmit audio and video data.<br />
  9. 9. Scanner or optic scanner is a light sensing input device that reads printed text and graphic and translate the results into a form the computer can process.<br />Examples:<br />*Flatbed scanner<br />*Optical reader<br />*Optical character recognition(OCR)<br />*Optical mark recognition(OMR)<br />*bar code reader/bar code scanner<br />*Radio frequency identification(RFID)<br />*magnetic stripe card reader<br />*magnetic ink character recognition(MICR)<br />
  10. 10. What Are Various Biometric Devices?<br />*Biometric device translate a personal characteristic into digital <br /> code that is compared with a digital code stored in the<br /> computer to identify an individual.<br />Devices:<br />*fingerprint reader<br />*face recognition system <br />*hand geometry system<br />*voice verification system<br />*signature verification system <br />*retinal scanner<br />