IGCSE ICT Input Devices

1. Information & Communication Technology Iman Ali (9G4)
5/5/2014 7:01:58 AM MS. ANUJA 1

2. Information & Communication Technology Iman Ali (9G4)
2.1) INPUT DEVICES
5/5/2014 7:01:58 AM MS. ANUJA 2

3. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keyboard
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 3

4. Information & Communication Technology Iman Ali (9G4)
OBJECTIVE OUTCOME
Students will
learn the uses
of each input
devices with
their
advantages and
disadvantages.
5/5/2014 7:01:58 AM MS. ANUJA 4

5. Information & Communication Technology Iman Ali (9G4)
INPUT DEVICES
 Input devices are hardware devices that allow data
to be input into a computer.
5/5/2014 7:01:58 AM MS. ANUJA 5
COMMON SPECIALIST
Eg: keyboard Eg: barcode

6. KEYBOARD
5/5/2014 7:01:58 AM MS. ANUJA 6

7. Information & Communication Technology Iman Ali (9G4)
1) KEYBOARD
 Most common
 Used to input text, numbers and instructions into the
computer.
 Most use QWERTY layout
5/5/2014 7:01:58 AM MS. ANUJA 7

8. Information & Communication Technology Iman Ali (9G4)
1) KEYBOARD
USES:
Input data it into applications software
For typing in commands to the computer
(Eg: Prn Scrn, Ctrl+P, etc).
5/5/2014 7:01:58 AM MS. ANUJA 8

9. Information & Communication Technology Iman Ali (9G4)
1) KEYBOARD
ADVANTAGES: DISADVANTAGES:
 Enable fast entry of new text
into a document.
 Well-tried technology & well-
known method of entry.
 Easy to use
 Easy to do verification checks
as data is entered.
 Users with limited arm/wrist
use can find hard to use.
 Slow, compared to direct data
entry.
 Use up a lot of desk space.
5/5/2014 7:01:58 AM MS. ANUJA 9

10. Information & Communication Technology Iman Ali (9G4)
Ergonomic Keyboards
 Recently developed .
 Reduce health related problems
(Eg: carpal tunnel syndrome or repetitive strain injury
(RSI).)
5/5/2014 7:01:58 AM MS. ANUJA 10

11. Information & Communication Technology Iman Ali (9G4)
Concept Keyboards
 Uses icons or phrases instead of standard letters.
ADVANTAGES:
Fast data entry.
Waterproof, useful in restaurant environments
Tamper proof, useful in certain applications
5/5/2014 7:01:58 AM MS. ANUJA 11

12. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keypad
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 12

13. NUMERIC
KEYPAD
5/5/2014 7:01:58 AM MS. ANUJA 13

14. Information & Communication Technology Iman Ali (9G4)
2) NUMERIC KEYPADS
 Used to enter number only.
USES:
 In automatic teller machines (ATMs), where customers
can key in their personal identification number (PIN), an
amount of money.
 Telephones
 Electronic Point Of Sale (EPOS) terminals have these,
in case the barcode reader fails , and so it’s manually
keyed in.
5/5/2014 7:01:58 AM MS. ANUJA 14

15. Information & Communication Technology Iman Ali (9G4)
2) NUMERIC KEYPADS
ADVANTAGES: DISADVANTAGES:
 Faster in entering numeric
data.
 Easy top carry (for many of
them).
 Difficult to use
 Difficult for entering text
 Order of numbers isn’t
intuitive.
5/5/2014 7:01:58 AM MS. ANUJA 15

16. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keypad
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 16

17. Information & Communication Technology Iman Ali (9G4)
3) POINTING DEVICES
5/5/2014 7:01:58 AM MS. ANUJA 17

18. MOUSE
5/5/2014 7:01:58 AM MS. ANUJA 18

19. Information & Communication Technology Iman Ali (9G4)
3) POINTING DEVICES
 Ball is used underneath the mouse to detect movements
 By moving the mouse around you can
 control the position of a pointer on the
 screen
 Buttons
1. Left button: select something by
2. double clicking
3. Right button: brings up drop-down menus
4. Scroll button: speeds up the process of moving through
a document.
5/5/2014 7:01:58 AM MS. ANUJA 19
MOUSE

20. Information & Communication Technology Iman Ali (9G4)
TYPES OF MICE
1. OPTICAL MOUSE
2. CORDLESS MOUSE
5/5/2014 7:01:58 AM MS. ANUJA 20
3) POINTING DEVICES
MOUSE

21. Information & Communication Technology Iman Ali (9G4)
USES:
Opening, closing & minimizing software
Grouping, moving & deleting files
Editing images
Controlling position of the pointer on the screen
Selecting an icon, scrolling up & down/left & right
5/5/2014 7:01:58 AM MS. ANUJA 21
3) POINTING DEVICES
MOUSE

22. Information & Communication Technology Iman Ali (9G4)
ADVANTAGES: DISADVANTAGES:
 Faster to select
 Enable rapid navigation
through applications and
the internet
 Small, take up little area
 Users with limited arm/wrist
use can find hard to
operate a mouse
 Easily get damaged, older
ones, get clogged up with
dirt.
 Difficult if no flat surface
readily available
5/5/2014 7:01:58 AM MS. ANUJA 22
3) POINTING DEVICES
MOUSE

23. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keypad
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 23

24. Information & Communication Technology Iman Ali (9G4)
5/5/2014 7:01:58 AM MS. ANUJA 24

25. Information & Communication Technology Iman Ali (9G4)
 Found in many laptop computers.
 Controlled by moving finger on the touchpad, & gently
tapping for selection.
 Also have buttons for same functioning as the mouse.
USES:
SAME MOUSE USES
5/5/2014 7:01:58 AM MS. ANUJA 25
3) POINTING DEVICES
TOUCHPAD

26. Information & Communication Technology Iman Ali (9G4)
ADVANTAGES: DISADVANTAGES:
 Faster to select an option
 Rapid navigation through
applications & the internet.
 No need of separate
mouse.
 Can be used even if there
is no flat surface available.
 Users with limited arm/wrist
use can find hard to use.
 Difficult to control the
pointer than mouse.
 Difficult to ‘drag & drop’
5/5/2014 7:01:58 AM MS. ANUJA 26
3) POINTING DEVICES
TOUCHPAD

27. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keypad
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 27

28. Information & Communication Technology Iman Ali (9G4)
5/5/2014 7:01:58 AM MS. ANUJA 28

29. Information & Communication Technology Iman Ali (9G4)
 Ball is on the top of this device and the user controls
the pointer on the screen by rotating the ball with the
hand.
 Most have two buttons, which have the same
functions.
 If there is a third button, equivalent to a double click.
5/5/2014 7:01:58 AM MS. ANUJA 29
3) POINTING DEVICES
TRACKERBALL

30. Information & Communication Technology Iman Ali (9G4)
TRACKERBALL
USES:
Same pointing/cursor capability as a mouse.
Used in applications where user has a disability
(such as RSI)
Used in a control room environment (faster use).
5/5/2014 7:01:58 AM MS. ANUJA 30
3) POINTING DEVICES

31. Information & Communication Technology Iman Ali (9G4)
ADVANTAGES:
DISADVANTAGES:
 Don’t need the same fine
control as the mouse.
 Users with limited arm/wrist
movement will find it easier
than a mouse.
 Pointer can be positioned
more accurately on the
screen.
 Very expensive.
 Users need practice for
easy controlling.
5/5/2014 7:01:58 AM MS. ANUJA 31
3) POINTING DEVICES
TRACKERBALL
 They take up less desk
space, since they are
stationary.

32. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keypad
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 32

33. REMOTE
CONTROL
5/5/2014 7:01:58 AM MS. ANUJA 33

34. Information & Communication Technology Iman Ali (9G4)
 Used to control the operation of other devices
remotely, by infra signals.
 Buttons are used to select options such as:
Television stations
Sound levels
Timings on a DVD recorder
5/5/2014 7:01:58 AM MS. ANUJA 34
3) POINTING DEVICES
REMOTE CONTROL

35. Information & Communication Technology Iman Ali (9G4)
USES:
 In most home entertainment devices such as:
 Television
 DVD player/ recorder
 Hifi systems
 To control multimedia systems.
 In industrial applications to remotely control
process. (stop and start machinery, etc.)
5/5/2014 7:01:58 AM MS. ANUJA 35
3) POINTING DEVICES
REMOTE CONTROL

36. Information & Communication Technology Iman Ali (9G4)
ADVANTAGES: DISADVANTAGES:
 Enable devices to operate
from any distance.
 Safe to operate equipment
from a distance., as some
chemical process are
hazardous.
 Users with limited
hand/wrist movement can
find it difficult to use.
 The signal between the
control and the device can
easily be blocked.
5/5/2014 7:01:58 AM MS. ANUJA 36
3) POINTING DEVICES
REMOTE CONTROL

37. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keypad
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 37

38. Information & Communication Technology Iman Ali (9G4)
5/5/2014 7:01:58 AM MS. ANUJA 38

39. Information & Communication Technology Iman Ali (9G4)
 Similar function to a mice and trackball.
 By gripping the stick, a pointer on the screen can be
controlled
 Whereas, buttons are used to make selections.
 Often they have another button on the top of the
stick, for gaming purposes.
5/5/2014 7:01:58 AM MS. ANUJA 39
3) POINTING DEVICES
JOYSTICKS

40. Information & Communication Technology Iman Ali (9G4)
USES:
Video/computer games are
often controlled by joysticks.
Used in simulators to mimic
actual controls.
5/5/2014 7:01:58 AM MS. ANUJA 40
3) POINTING DEVICES
JOYSTICKS

41. Information & Communication Technology Iman Ali (9G4)
ADVANTAGES: DISADVANTAGES:
 Easier to navigate.
 Control is in three
dimensions (3D).
 Difficult to control the on
screen pointer than the
mouse.
5/5/2014 7:01:58 AM MS. ANUJA 41
3) POINTING DEVICES
JOYSTICKS

42. Information & Communication Technology Iman Ali (9G4)
INDEX
Input Devices
1. Keyboard
Ergonomic Keyboards
Concept Keyboards
2. Numeric Keypad
3. Pointing Devices:
 Mice
 Touch pad
 Tracker ball
 Remote Control
 Joystick
5/5/2014 7:01:58 AM MS. ANUJA 42

43. Information & Communication Technology Iman Ali (9G4)
OBJECTIVE OUTCOME
Students will
learn the uses
of each input
devices with
their
advantages and
disadvantages.
5/5/2014 7:01:58 AM MS. ANUJA 43
We have learnt
The different
kinds of input
devices and
their uses,
including
advantages and
disadvantages.

44. 5/5/2014 7:01:58 AM MS. ANUJA 44