The document discusses various input devices used with computers. It describes keyboards, including normal keyboards with 101-104 keys and multimedia keyboards with additional keys. It outlines the different types of keys on a keyboard like alphabetic keys, number keys, function keys, special keys, and arrow keys. It also discusses pointing devices like the mouse, trackball, touchpad, joystick, light pen, and graphic tablet. Finally, it covers source data entry devices such as bar code readers, magnetic ink character recognition (MICR), optical character recognition (OCR), optical mark recognition (OMR), magnetic stripe cards, smart cards, microphones, webcams, scanners, and fax machines.
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Here is another creative presentation by your slide maker on the topic “INPUT DEVICES". Hope you like it. If you like it then please, *like*, *Download* and *Share*. By- Slide_maker4u (Abhishek Sharma) *******For presentation Orders, contact me on the Email addresses Written below******** Email- Sharmaabhishek576@gmail.com or Sharmacomputers87@gmail.com
*******THANK YOU***************
WHAT IS COMPUTER ?
COMPUTER is an electronic machine used to solve different problems according to a set of instructions given to it .
The word COMPUTER is derived from COMPUTE that means to calculate.
WHAT IS MEANT BY AN INPUT DEVICE ?
A hardware component used to enter data and instructions into computer is called input device.
There are several types of input device given below:
Keyboard
Mouse
Gamepad
Joystick
Scanners and reading devices
Touch screen
Pen input
WHAT IS MEANT BY AN OUTPUT DEVICE ?
The hardware components that are used to receive information from the computer are called output devices.
TYPES OF OUTPUT DEVICES
Display Devices
Printer
Plotter
Data Projector
Headphones
REFERENCE
WEBSITE :
https://www.giki.edu.pk/Faculties/FCSEhttps://www.webopedia.com/TERM/C/computer.html
BOOK :
THE CONCEPTS OF INFORMATION TECHNOLOGY
GOOGLE IMAGES
Presented by
MAMOONA GHAFFAR
Department
BS Botany (Regular)
WHAT IS COMPUTER ?
COMPUTER is an electronic machine used to solve different problems according to a set of instructions given to it .
The word COMPUTER is derived from COMPUTE that means to calculate.
WHAT IS MEANT BY AN INPUT DEVICE ?
A hardware component used to enter data and instructions into computer is called input device.
There are several types of input device given below:
Keyboard
Mouse
Gamepad
Joystick
Scanners and reading devices
Touch screen
Pen input
WHAT IS MEANT BY AN OUTPUT DEVICE ?
The hardware components that are used to receive information from the computer are called output devices.
TYPES OF OUTPUT DEVICES
Display Devices
Printer
Plotter
Data Projector
Headphones
REFERENCE
WEBSITE :
https://www.giki.edu.pk/Faculties/FCSEhttps://www.webopedia.com/TERM/C/computer.html
BOOK :
THE CONCEPTS OF INFORMATION TECHNOLOGY
GOOGLE IMAGES
Presented by
MAMOONA GHAFFAR
Department
BS Botany (Regular)
Hardware devices
Parts of computer
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Keyboard mouse printer scanner joystick ppt
Computer ppt
Software devices ppt
Scanner
Plotter
Types of printer
Types of mouse
Types of scanner
Types of plotter
Difference between software and hardware devices
Function of keyboard keys
Function of joystick
Function of stylus
Monitor
Function of monitor
Difference between impact and non impact printer
Features of monitor
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Input devices by m.traiq
1.
2. Input Devices
• Input devices are those devices from
which we can input data and instructions
into the computers. A number of input
devices have been developed.
3. KEYBOARD
It is most commonly used input device. It
is used to input data into written form.
Keyboard is merely a collection of
momentary switches.
4. MULTIMEDIA KEYBOARD
• Multimedia keyboard
has some additional
keys to operate
multimedia operations
like volume up,
volume down, play,
pause, stop etc.
5. Buttons on a keyboard are called Keys.
We can type letters, numbers by simply
pressing these keys.
KEYS ON A KEYBOARD
6. NORMAL KEYBOARD
• A normal keyboard has 101-104 keys
which are distributed in five categories.
• Function keys
F1 to F12
• Alphanumeric keys
A-Z, a-z, 0-9
• Special keys
Alt, Ctrl, Enter, Insert, Home,
End, Esc etc.
• Numeric keypad
0-9,+,-,*,%,@ etc.
7. The different keys on the keyboard are:
1. Alphabetic Keys
2. Number Keys
3. Function Keys
4. Special Keys
5. Arrow Keys
Types of Keys
8. ALPHABETIC KEYS
These are marked with the English alphabets from
A to Z. There are 26 Alphabetic Keys.
They are placed closely so that our fingers can reach there easily.
9. NUMERIC KEYS
The keys marked with numbers from 0 to 9 are called
Number Keys.
The number keys are also
placed at the right side of the
Keyboard known as Numeric
Keypad.
12. Cursor Movement keys
Used to move the cursor in four direction i.e. up,
down, left and right.
UP
LEFT
RIGHT
DOWN
13. Caps Lock Key
Used to type the letters in capitals
When you press the Caps
Lock Key the light on the
keyboard will turn ON. If
you press it again, the light
will turn OFF.
15. Shift Key
Used to type the letters in capital or small case
without using Caps Lock key.
Also used to type symbols printed on the top of the
Number Keys.
!
16. Enter Key
Used to tell the computer that you have
finished a word or line. It brings the cursor
down to the next line.
17. Delete Key
Used to erase anything typed from the right side of
the cursor.
18. Function Keys
The Function keys are placed at the
top row of the keyboard marked with
F1, F2.......F12
They are used to perform special
functions.
20. All the above keys combined together to form a
Keyboard
21. POINTING Devices
• Input devices those are used to control
the movement of cursor on screen are
called pointing devices
22. MOUSE
• It is a pointing device used
to insert instructions into
the computers. It is a hand
held device that controls the
pointer on the screen. It has
two buttons viz. left button
& right button & one
scrolling wheel. With the
help of mouse you can draw
images, select options &
move text & images.
23. TRADITIONAL MOUSE
• Traditional mouse is used a
ball built into the bottom with
two small rollers placed two
sides of the ball at 90 degree
angle from each other. They
spin when the ball rolls. A
sensor detects how much
each roller spins and sends
the information to computer
and the pointer on the screen
moves into the same
direction.
24. OPTICAL MOUSE
• Optical mouse is a advance
pointing device that uses a
light diode (LED)(1), an
optical sensor (2) and a
digital signal (3) processing
in place of traditional
mouse ball. Optical mouse
need plan surface to
produce high performance
efficiency. Each time the
mouse is moved, the beam
of light is interrupted by
the surface.
25. Tracker ball
• A trackball is a pointing device which look like
mouse. It has two or more buttons. The buttons
work like mouse. It has a rotating ball on it top. The
ball move with the help of finger. Rotating the ball
move the cursor on screen.
26. Touch Pad
• A touchpad is a pointing device consisting of
specialized surface that can translate the
motion and position of a user's fingers to a
relative position on screen.
27. TOUCH SCREEN
• Touch screen is the easiest way
to data input into computer.
Touch screen allows the user to
select the item by touching the
screen at appropriate spot. It
has another feature that the
user’s finger become the input
device to operate touch screen.
28. Touch Screen
• A touch sensitive
display you interact
with by touching areas
of the screen with
your fingers
• ATM machines,
Mobile phones
29. Pointing Stick
• Pressure sensitive
device shaped like a
pencil eraser that is
positioned between
keys on the keyboard.
• First developed by
IBM for their
notebook computers
30. Graphic Tablet
• It is a flat, rectangular
electronic plastic board
• Also called a “digitizer” or
“digitizing tablet”
• Used along with a stylus
• One use: architects, map
makers, artists, and
designers create drawings
and sketches using it
31. Light Pen
• A handheld device
that contains a light
source or can detect
light.
• Some require specially
designed monitors.
• One problem is hand
fatigue.
32. Light Pen
• A light pen is a computer input device in the
form of a light-sensitive wand used in
conjunction with a computer's CRT TV set or
monitor.
33. JOYSTICK
• Joystick is a pointing device
mostly used for playing
games. This is a device used to
control the actions in a
computer game. It consist of a
lever used to move the
pointer on the screen and
buttons used to select
options.
34. Pen-based Computer System
• Weighs around 3 lbs.
• Uses a digital pen
• Microsoft version uses
Windows XP Professional
• It has handwriting and
voice recognition
capabilities
– Take notes and save
them
– Convert handwritten
documents into typed
documents
35. Stylus
• Looks like a ballpoint
pen. It uses pressure
to write and draw
lines.
• Original names were:
“electronic pen” or
“e-pen”
37. Bar code reader
• Bar code reader are
used to read the values
printed on the product
in form of vertical lines.
Bar codes are recorded
on the products by the
manufacturers and
usually carry the
product number.
39. MICR – Magnetic Ink Character
Recognition
• MICR is used by banking industry for faster
processing of large volume of cheques
• Bank’s identification code (name, branch, etc.),
account number and cheque number are pre-
printed (encoded)using characters from a special
character set on all cheques
• Special ink is used that contains magnetizable
particles of iron oxide
• MICR reader-sorter reads data on cheques and
sorts them for distribution to other banks or for
further processing
41. OCR – Optical Character Recognition
• Scanner with a character recognition software
(called OCR software) that converts the bit map images
of characters to ASCII codes
• Enables word processing of input text and also requires
less space for storing the document
• OCR software is extremely complex because it is difficult
to make a computer recognize an unlimited number of
fonts
• Two standard OCR fonts are OCR-A (American standard)
and OCR-B (European standard)
43. OMR – Optical Mark Reader
• Scanner capable of recognizing a pre-specified
type of mark by pencil or pen
• Very useful for grading tests with objective
type questions, or for any input data that is of
a choice or selection nature
46. Magnetic Stripe
• A magnetic stripe card is a type of card
capable of storing data by modifying the
magnetism of tiny iron-based magnetic
particles on a band of magnetic material on
the card.
48. What is a smart card?
A smart card is a plastic card with a small, built
in microcomputer chip and integrated circuit
that can store and process a lot of data
49. What is a Smart Card?
A Smart card is a plastic card about
the size of a credit card, with an
embedded microchip that can be
loaded with data, used for telephone
calling, cash payments , and other
applications, and then periodically
refreshed for additional use.
52. Fax Modem
It is a circuit board inside the system
unit. It can send & receive fax from
one computer to another.
53. Audio input
• Microphone is an input
device used to inputting the
voice signal into the
computer. microphones are
commonly used for live chat.
Microphones are also used to
record voice into the
computer.
54. Video input
• Webcam is an input device
used to inputting the video
into the computer. Webcam
are commonly used for video
chat. Webcam are also used
to record video into the
computer.
55. SCANNER
• Scanner is an input device used
to insert a picture into the
computer. This is a peripheral
device that converts a printed
image into digital information.
There are two types of
scanners:
56. FLAT BED SCANNER
• A flat bed scanner uses
a flat surface just like
photocopier. We can
place a picture on the
surface of the scanner:;
scanner scans the
image and convert into
digital form. The picture
can be seen on the
monitor screen after
scanning.