Keyboard and its types
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Keyboard and its types

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Keyboard and its types Keyboard and its types Presentation Transcript

  • Introduction
  • TYPES OF KEYBOARD
  • 1. Compact Size POS Keyboard 2. Full Size POS Keyboard 3. 78-Key POS Keyboard 4. LCD-POS Keyboard 5. Qwerty-POS keyboard 6. Mini Qwerty POS Keyboard 7. 28-Key POS Keyboard 8. Compact POS Keyboard 9. 112, 66, 51, Key POS Keyboard Here, are some types:
  • Compact Size POS Keyboard
  • -64 fully programmable keys -Keyboards are backed up by 1.2mm thick metal frame -Available in USB, PS/2 Interface -Programmable keys can be programmed with 255 characters - Provides multi-level programming -Provides for a variable time delay in each programmed string -Support PS/2 programming in DOS, Windows9X, Me, 2K, XP -USB programming through the USB HID interface, need not any keyboard drivers. FEATURES:
  • Full size POS keyboard
  • FEATURES: -32 fully programmable keys -QWERTY section is made of POS graded membrane keys -Numeric section is made of Cherry MX key switches -Keyboards are backed up by 1.2mm thick metal frame -With built-in touchpad, removable, detachable cables -Available in USB, PS/2 Interfac -Programmable keys can be programmed with 255 characters -Provides multi-level programming -Provides for a variable time delay in each programmed string -Provide a true Caps/Scroll/Numeric Lock function independent of any other keyboards being connected -USB programming through the USB HID interface, need not any keyboard drivers.
  • 78 Key POS Programmable Keyboard
  • FEATURES: -Two different key actions (soft contact and key click) -Laser-engraved keycap symbols or high quality UV silk screen printed keycap symbols -Operating life cycle of individual keys: >Soft contact mode: 50 million strokes >Key click mode: 20 million strokes -Damaged keys can be easily replaced and hence save the replacement cost -All keys can be programmed with unlimited characters -Does not require a TSR program and hence avoids application software crashes -Provides multi-level programming -Provide a true Caps/Scroll/Numeric Lock function independent of any other keyboards being connected
  • LCD POS Keyboard
  • FEATURES: -LCD pos programmable keyboard features -Display is present at top of board -Rest is same as of previous POS keyboard LCD Features: -Dot Matrix LCD (132 * 32), with backlight LED -Support ESC/POS Protocol, control to display on both display or either one -With built-in LCD Display, replacing the bulky monitor; low cost and space saving POS solution
  • QWERTY POS Keyboard
  • FEATURES: -Option for Unlimited Programmability of all Keys in up to 3 Layers Provides Convenient Data Access -Plug and Play Configuration for all Common POS Features -Enhanced US 131/127 Position Key Layout -Moving of Keys Allows for Easy Key Position Exchange Including Modifier Functions -Pop-up Window for Comfortable Display of Programmed Keys -Robust Product Design with IP 54 Spill and Dust Resistant Key Field for Harsh Environments -Selection of Non-Keyboard Hexcodes Enhances Security for Credit Card Processing -Full size keyboard with QWERTY layout -Fully Programmable Keyboard with 42 Relegendable Keys for Easy Layout Configuration and Quick Function Calls
  • MINI QWERTY POS KEYBOARD
  • FEATURES: -Compact keyboard with QWERTY section, with programmable keys -High quality membrane keys with tactile feeling -Laser-engraved keycap symbols or high quality UV silk screen printed keycap symbols -Damaged keys can be easily replaced and hence save the replacement cost -With internal strong metal plate to enhance the protection against ESD is increased -All keys can be programmed with unlimited characters -Provides multi-level programming -Support PS/2 programming in DOS, Windows9X, Me, 2K, XP
  • 28-Key POS Keyboard
  • FEATURES: -With 28 Cherry MX key switches, good tactile feeling -With spill proof guide-array, patent design. - Laser-engraved keycap symbols or high quality UV silk screen printed keycap symbols -Damaged keys can be easily replaced and hence save the replacement cost -Detachable cable, using RJ-45 connector, USB Interface -All keys can be programmed with 255 characters -Provides multi-level programming -Provides for a variable time delay, of 0.5sec per interval -Support PS/2 programming in DOS, Windows9X, Me, 2K, XP -All programmed data are stored in the keyboard EEPROM.
  • Compact POS Keyboard
  • FEATURES: -64 fully programmable keys -QWERTY section can be on the top four rows or on the bottom four rows -All keys are made of POS graded membrane keys -Keyboards are backed up by 1.2mm thick metal frame -Detachable cable, using the tough RJ45 connector -Available in USB, PS/2 Interface -Programmable keys can be programmed with 255 characters -Provides multi-level programming -Provides for a variable time delay in each programmed string -Support PS/2 programming in DOS, Windows9X, Me, 2K, XP
  • 112 Key POS keyboard
  • 66 Key POS keyboard
  • 51 Key POS Keyboard
  • FUNCTIONING OF KEYBOARD
  • KEYBOARD CONTROLLER KEYBOARD BUFFER SYSTEM SOFTWARE 1 A key is pressed on the keyboard 2 The keyboard controller sends the scan code for the key to key board buffer 3 The keyboard controller sends an interrupt request to the system software 4 The system software responds to the interrupt by reading the scan code from the keyboard buffer 5 The system software passes the scan code to CPU
  • ANY QUESTIONS PLEASE ?
  • Thank you