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9713_AICT_Section 1

9713_AICT_Section 1. ICT systems including portable communication devices. Input Devices. Keyboard typewriter-like keys classified as follows alphanumeric keys -- letters and numbers punctuation keys -- comma, period, semicolon, and so on.

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9713_AICT_Section 1

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  1. 9713_AICT_Section 1 ICT systems including portable communication devices

  2. Input Devices Keyboard • typewriter-like keys • classified as follows • alphanumerickeys -- letters and numbers • punctuationkeys -- comma, period, semicolon, and so on. • special keys -- function keys, control keys, arrow keys, Caps Lock key, and so on.

  3. Keyboard (Cont…) • Standards • QWERTY • AZERTYkeyboard is the French version of the standard QWERTY keyboard • Dvorakkeyboard. Unlike the traditional QWERTY keyboard, the Dvorak keyboard is designed so that the middle row of keys includes the most common letters

  4. Virtual Keyboard • A virtual keyboard is where a full-size image of a QWERTY keyboard is projected onto any surface. • Virtual keyboards are also compatible with many Smartphones and PDAs. • projection keyboard

  5. Virtual Keyboard Image

  6. Numeric keypad A separate set of keys on some keyboards that contain the numbers 0 through 9 and a decimal point arranged as on an adding machine. Numeric keypads make it easier to enter large amounts of numeric data Usually 17-key keypad

  7. Most Frequently use of Numeric keypad • Inserting personal identification number (PIN) • PIN credit/debit cards • ATM machine to withdraw money or check a bank balance. • More ?

  8. Pointing devices • A device with which you can control the movement of the pointer to select items on a display screen • Examples: mouse, trackballs, joysticks, touchpads, and light pens. • Use • All applications which require selection from a graphical user interface. • Frequently use GUI. • Graph Draw • Drag/Drop Situations.

  9. Examples of Pointing Devices

  10. Mouse • A device that controls the movement of the cursor or pointer on a display screen • Invented by Douglas Engelbartof Stanford Research Center in 1963, and pioneered by Xerox in the 1970s

  11. Three Basic types of mice • Mechanical Has a rubber or metal ball on its underside • Optomechanical Same as a mechanical mouse, but uses optical sensors to detect motion of the ball • Optical Uses a laser to detect the mouse's movement.

  12. connect to PCs in one of several ways • Serial Mouse • Directly to RS-232C Serial Port or PS/2 port • PS/2 mice • connect to a PS/2 port • USB mice • connect to USB Port • Cordless mice • aren't physically connected at all. Instead they rely on infrared or radio waves to communicate with the computer. Cordless mice are more expensive than both serial and USB mice.

  13. Touchpad A specialized surface that can translate the motion and position of a user's fingers to a relative position on screen

  14. Question • What is a difference between Single Touch and Multi touch. • Which one is more secure and speedy. • Examples of Single touch devices and Multi-touch supported devices. • Explain Multi-touch gestures.

  15. Trackerball • A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball. • The user rolls the ball with the • thumb, • fingers, • or the palm of the hand to move a pointer.

  16. A trackball is a pointingdevice consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball. The user rolls the ball with the thumb, fingers, or the palm of the hand to move a pointer.

  17. Remote control • A remote control is a component of an electronics device, most commonly a television set, DVD player and home theater systems originally used for operating the device wirelessly from a short line-of-sight distance. • radio-frequency devices

  18. Devices for Remote Control Using remote control devices to operate • TVs, • video players/recorders, • DVD players/recorders, • satellite receivers, • HiFimusic systems, • data or multimedia projectors

  19. Lesson Summary

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