Pointing devices are hardware input tools used to control the cursor on a computer screen and include mice, trackballs, touchpads, and more. Mice are the most common pointing device and use movement of the device to move the on-screen cursor in the same direction. Other pointing devices include trackballs, which contain a ball that is rolled to move the cursor, and touchpads, which are flat surfaces that track finger movement to control the cursor. Pointing devices allow users to perform functions like selecting text, icons, and menus.
Scanner is a device that translates hard copy into soft copy.
It translates data on a sheet of paper to a form that can be stored on a computer.
In other words converting of a document into digital format.
Data can be in either form of text or graphics.
Scanner is a device that translates hard copy into soft copy.
It translates data on a sheet of paper to a form that can be stored on a computer.
In other words converting of a document into digital format.
Data can be in either form of text or graphics.
An output device is computer hardware that uses received data and commands from a computer in order to perform a task.
Any peripheral that receives data from a computer, usually for display, projection, or physical reproduction.
Computer hardware equipment used to communicate the results of data processing carried out by a computer to the outside world.
These slides shortly explain Computer Software and Its types with Examples.
Prepared by: Ahmad Hussain, Department of English, Abdul Wali Khan University Mardan,Pakistan.
Email: mr.literature123@gmail.com
An output device is computer hardware that uses received data and commands from a computer in order to perform a task.
Any peripheral that receives data from a computer, usually for display, projection, or physical reproduction.
Computer hardware equipment used to communicate the results of data processing carried out by a computer to the outside world.
These slides shortly explain Computer Software and Its types with Examples.
Prepared by: Ahmad Hussain, Department of English, Abdul Wali Khan University Mardan,Pakistan.
Email: mr.literature123@gmail.com
some of the graphical input devices. emerging technology also transforms and presents to us various innovative input devices. at present automatic speech recognition is an intelligent input method
Importance of I/O devices,Types of input devices,keyboard
Pointing devices,Speech recognition,Digital camera
Webcam,Scanners,OCR,OMR,MICR,Bar-code reader
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2. Definition
➢ Pointing Devices are
hardware input devices
used to control the cursor
on computer screen.
➢It is a
device through which we
can control the
movement of pointer to
select the items on screen.
6. Mouse
•It is a device that control
the movement of
cursor or pointer on
display screen.
• As we move the mouse,
the cursor on display
screen moves in the same
direction.
8. Mechanical Mouse
➢ A mechanical mouse is a
computer mouse that contains a
metal or rubber ball on its
lower side.
➢ When the ball is rolled in any
direction, sensors inside
the mouse detect this motion and
move the on-screen mouse pointer
in the same direction.
9. Optical Mouse
➢ An optical mouse is a computer
mouse which uses a light source,
typically a light-emitting diode.
➢ It contains no ball inside it.
➢ It is more expensive then
mechanical mouse.
10. Wireless OR
Cordless Mouse
➢ A cordless mouse, also
called a wireless mouse, is
a mouse that connects to a
computer without the use of
wires.
➢ It transmits data using Radio
waves or Infrared Light
waves.
11. Air Mouse
➢ Air Mouse is a Motion-Sensing
mouse.
➢ It controls the objects by moving
the mouse in specific
directions through the air.
12. Touch Mouse
➢ It is a Touch-Sensitive
mouse.
➢ It works on recognizes the
touch gestures.
13. Trackball
➢A trackball is a different kind of
computer mouse.
➢ It is a plastic containing
a ball on the top that moves a
computer cursor around on the
screen. The user can move
the ball with their thumb or
fingers, and sensors inside the
case detect which direction
the ball is moving.
14. Trackball
➢ The advantage of trackballs
over mouse is that
the trackball is stationary so it
does not require much space to
use it.
➢ You can place a trackball on
any type of surface, including
your lap.
15. Pointing Stick
➢ It is a pressure-sensitive
device.
➢ A pointing stick is a small
joystick used as a pointing
device typically mounted
centrally in a computer
keyboard.
➢ It requires no additional space
cleaning like mouse.
16. Touchpad or
Trackpad
➢It is a small flat surface over
which the user moves his finger.
➢It is also as Trackpad.
➢The movement of finger moves
the cursor on screen.