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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

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Keyboard and its types

  • 1.
  • 4. 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:
  • 5. Compact Size POS Keyboard
  • 6. -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:
  • 7. Full size POS keyboard
  • 8. 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.
  • 9. 78 Key POS Programmable Keyboard
  • 10. 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
  • 12. 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
  • 14. 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
  • 16. 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
  • 18. 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.
  • 20. 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
  • 21. 112 Key POS keyboard
  • 22. 66 Key POS keyboard
  • 23. 51 Key POS Keyboard
  • 25. 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