PPT on Input And Out put Devices

1. :
Pointing and touch devices, keyboard, Mice, pen/stylus, pen based
computers, touch screens.
Presented by
Waqar Hussain Channa

2. Input Devices
An input device is a peripheral (piece of
computer hardware equipment) used to
provide data and control signals to an
information processing system such as a
computer or information appliance.
Examples of input devices include keyboards,
• Mouse
• Scanners,
• Digital cameras
• Keyboard
• Mic

3. Output Devices
An output device is any peripheral that
receives data from a computer, usually for
display, projection, or physical
reproduction. ... Monitors and printers are
two of the most common output
devices used with a computer
• Examples
• Monitor
• Printers
• Headphone
• Printer
• Webcam

4. Pointing and touch devices
 Examples of Pointing and
touch devices
 Mouse
 Stylus
 Track Ball
 Touch pad
A pointing device or the touch devices is a piece of hardware use to make
selection on the computer screen and it is also come in the category of
input devices because we give input to a computer

5. Keyboar
d
• Keyboard is a type of input device .It is used to give input to
the computer
• Keyboard is consisted of different keys like function keys,
numeric keys, Alphabetical keys and various others
• Basically keyboard was created in third generation by IBM
company .
• Wired and Wireless Keyboard
• Now keyboards have additional functionality and features
like finger print reader , touch pad etc.
• MIDI keyboard
• Slide out keyboard
• Keyboard folio
• Keyboard dock

6. Types of Keyboards
• MIDI Keyboard(Musical
instrument Digital
Interface)
• Slide out Keyboard
• Keyboard folio/Keyboard
Dock

7. Keyboard

8. Pointing and Touch Devices
.
Pointing and touch devices hardware component that are
used to
• Select and manipulate objects
• Input data
• Issue commands to the computer
Common Types of Pointing Devices:
Mouse
Pen/stylus
Touch screen

9. Mice/MOUSE
• Invented by: Douglas Engel Bart in 1964
Common pointing device that user slides on flat surface to
move on screen cursor/pointer.
• Buttons provided on Mouse are used for selection purpose.
• used to select text, access menus, interact with programs,
files that appears on the screen.
Mouse can be connected with computers through
Wired connection through USB port or by old legacy port
Wireless connection by connecting receiver to computer through
legacy port

10. Types of Mouse
Mechanical
Mouse
Laser Mouse Optical Mouse Card less
Presenter Mouse

11. Stylus
• Pen-like device called stylus used for
writing, drawing, or tapping on the screen.
• Stylus also called a digital pen, electronic
pen, or tablet pen.

12. Stylus Of Two Types
 Passive stylus
 Plastic device that acts like a finger when
touching a devices screen
 No electronic communication b/w stylus and
device.
 Active stylus
 Stylus also has electronic components that
communicate with touchscreen controller.
 pressure-sensitive device that transmits the
pressure applied by the user to the device
using bluetooth
 used for on-screen drawing, electronic
document creation.

13. Advantages
 Smooth rounded tip saving screen from scratches.
 Accurate touch input for too small devices.
○ Contains buttons or switches to perform actions such as erasing content or right-clicking.
 Provides touch ability for users wearing gloves or having long finger nails.

14. Other Pointing
Devices
Touch
Pad
Gaming
Joystick

15. Pen based computers

16. Digital Forms
 Digital form filled with pen/stylus and converted to typed text by hand
writing recognition software.
 For example
○ Electronic health records (EHRs) are using digital forms
 Advantages
○ Saves time
○ Reduces paper waste
○ Increases data accuracy
○ Increases data security

18. Any Question