The document discusses various types of computer input devices. It describes how keyboards allow users to enter text and instructions through keys. Mice and other pointing devices like trackballs and joysticks enable users to control the cursor position on screen. Data scanning devices can directly input data from source documents into computers. Touchscreens and pen-based devices allow input through touching or writing on the display screen.
Computer fundamental 2 Some information about computer. its input device and ...HamaQarani
Some information about computer.
its input device and output devices.
Computer is an advanced electronic device that takes raw data as an input from the user and processes it under the control of a set of instructions (called program), produces a result (output), and saves it for future use.
In computing, an input device is a piece of 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, cameras, joysticks, and microphones.
An output device is any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units i.e. a Monitor, Printer, Graphic Output devices, Plotters, Speakers etc.
I hope You all like it. I hope It is very beneficial for you all. I really thought that you all get enough knowledge from this presentation. This presentation is about materials and their classifications. After you read this presentation you knowledge is not as before.
Computer fundamental 2 Some information about computer. its input device and ...HamaQarani
Some information about computer.
its input device and output devices.
Computer is an advanced electronic device that takes raw data as an input from the user and processes it under the control of a set of instructions (called program), produces a result (output), and saves it for future use.
In computing, an input device is a piece of 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, cameras, joysticks, and microphones.
An output device is any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units i.e. a Monitor, Printer, Graphic Output devices, Plotters, Speakers etc.
I hope You all like it. I hope It is very beneficial for you all. I really thought that you all get enough knowledge from this presentation. This presentation is about materials and their classifications. After you read this presentation you knowledge is not as before.
this is my presentation
by: ryan ali y. banjal
you can email me if you needan presentation thius is my email address rayshey_16@yahoo.com my ym is this also...
Computer fundamental short information about input and output devices.HamaQarani
Some information about computer.
its input device and output devices.
Computer is an advanced electronic device that takes raw data as an input from the user and processes it under the control of a set of instructions (called program), produces a result (output), and saves it for future use.
In computing, an input device is a piece of 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, cameras, joysticks, and microphones.
An output device is any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units i.e. a Monitor, Printer, Graphic Output devices, Plotters, Speakers etc.
this is my presentation
by: ryan ali y. banjal
you can email me if you needan presentation thius is my email address rayshey_16@yahoo.com my ym is this also...
Computer fundamental short information about input and output devices.HamaQarani
Some information about computer.
its input device and output devices.
Computer is an advanced electronic device that takes raw data as an input from the user and processes it under the control of a set of instructions (called program), produces a result (output), and saves it for future use.
In computing, an input device is a piece of 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, cameras, joysticks, and microphones.
An output device is any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units i.e. a Monitor, Printer, Graphic Output devices, Plotters, Speakers etc.
Input devices
WHAT IS INPUT?
WHAT ARE INPUT DEVICES?
WHAT IS HARDWARE?
WHAT IS SOFTWARE?
input Devices
1) KEYBOARD
2) POINTING DEVICES
3) MOUSE
TYPES OF MOUSE
1. Mechanical mouse
2. Optical mouse
3. Wireless mouse
JOY STICK
TRACKBALL
TOUCHPAD
TOUCHSCREEN
DIGITAL PEN
LIGHT PEN
WHEEL
BIOMETRIC INPUT DEVICES
VOICE RECOGNITION
THUMB IMPRESSION
SIGNATURE VERIFICATION
RETINA SCANNER
FACE RECOGNITION
MIC/ HEAD PHONE
DIGITAL CAMERA
DIGITAL SCANNER
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Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
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2. Input is any data and instructions entered into the
memory of a computer
Muhammad Luqman (UOS)
3. As shown in Previous Figure , people have a variety of
options for entering data and instructions into a
computer
Data is a collection of unprocessed items, including
text, numbers, images, audio, and video
Once data is in memory, the compute interprets and
executes instructions to process the data into
information
Muhammad Luqman (UOS)
4. When a programmer writes a program, he or
she enters the program into the computer by
using a keyboard, mouse, or other input
device
The programmer then stores the program in
a file that a user can execute (run)
Muhammad Luqman (UOS)
5. 1. Keyboard
2. Point and Draw devices
3. Data Scanning devices
4. Digitizer
5. Electronic cards based devices
6. Speech recognition devices
7. Vision based devices
Muhammad Luqman (UOS)
7. An input device is any hardware component that
allows users to enter data an instructions (programs,
commands, and user responses) into a computer
Muhammad Luqman (UOS)
8. A keyboard is an input device that contains keys users
press to enter data an instructions into a computer
All desktop computer keyboards have a typing area
that includes the letters of the alphabet, numbers,
punctuation marks, and other basic keys
Many desktop computer keyboards also have a
numeric keypad on the right side of the keyboard
Muhammad Luqman (UOS)
9. Most popular keyboard used today is the 101-keys
QWERTY keyboard
An enhanced keyboard has twelve or more function
keys along the top; it also has two ctrl keys, two alt
keys, and a set of arrow and additional keys between
the typing area and the numeric keypad
Muhammad Luqman (UOS)
11. Function keys, which are labeled with the letter F
followed by a number, are special keys programmed
to issue commands to a computer
The command associated with a function key may
vary, depending on the program with which you are
inter acting
◦ For example, the F3 key may issue one command to
an operating system and an entirely different
command to a word processing program
Muhammad Luqman (UOS)
12. All Keyboard’s have toggle keys
A toggle key is a key that switches between two states each
time a user presses the key
When you press the num lock key, for example, it locks the
numeric keypad so that you can use the keypad to type
numbers. When you press the num lock key again, the
numeric keypad unlocks so that the same keys can serve to
move around a document
Muhammad Luqman (UOS)
13. Keyboards with media control buttons allow you to
control your media player program, access the
computer’s optical disc drive, and adjust speaker
volume
Internet control buttons allow you to open an e-mail
program, start a Web browser, and search the Internet
Some keyboards have USB ports so that you can plug a
USB device directly in the keyboard instead of in the
system unit
Muhammad Luqman (UOS)
14. Interacting with computer was initially restricted mainly to text
mode
It was soon realized that interacting with computers in text-
mode is time consuming
A new type of interface called Graphical User Interface (GUI)
was devised for interfacing with computers
A GUI provides a screen with graphical icons and allow a user to
make rapid selections from them to give instructions to
computers
Muhammad Luqman (UOS)
15. A pointing device is an input device that allows a user
to control a pointer on the screen
In a graphical user interface, a pointer is a small
symbol on the screen whose location and shape
change as a user moves a pointing device
Muhammad Luqman (UOS)
16. Mouse is most popular point and draw device
Mouse is a pointing device that fits under the palm of
your hand comfortably
The mouse is the most widely used pointing device on
desktop computers
Generally, you use the mouse to move the pointer on the
screen to an object such as a button, a menu, an icon, a
link, or text
Muhammad Luqman (UOS)
17. Most desktop computer users today have some type of
optical mouse, which uses devices that emit and sense
light to detect the mouse’s movement
Some use optical sensors, and others use a laser
A mouse connects to a computer in several ways. Many
types connect with a cable that attaches to a USB port
or a mouse port on the system unit
What are the types of Mouse ?
Muhammad Luqman (UOS)
18. A wireless mouse, or cordless mouse, is a
battery-powered device that transmits data
using wireless technology, such as radio
waves (Bluetooth) or infrared light waves
(IrDA).
Muhammad Luqman (UOS)
19. A Trackball is a pointing device similar to a
roller-ball mouse
It has roller-ball placed on the top along with
buttons
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20. To move graphical cursor on the screen ball is rolled
with hand
Trackball is a device of choice in Computer Aided
Design area
In designing track ball is preferred because hand
movement is mostly sufficient to move the graphical
cursor and does not require any movement of cursor
Muhammad Luqman (UOS)
21. A joystick is a pointing device that works on
the same principle as a trackball
A user move the spherical ball by the
attached stick with hand
The stick can be move forward, backward, left
or right
Muhammad Luqman (UOS)
22. It is a pen based point and draw device
User holds the pen in his/her hand and point with it
directly on the screen to select from the displayed
menu items or icons
Muhammad Luqman (UOS)
23. Touch screen is the most simple, intuitive, and easiest
to use of all input devices
A Touch screen enable a user to choose from available
options by simply touching the desired icon or menu
item displayed on the screen
Muhammad Luqman (UOS)
24. Data scanning devices are input devices used for direct
data entry into a computer system from source
document
Some of them also capable of recognizing marks or
characters
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25. They eliminate the need for manual entry of data by
human beings
Automatic entry of data with their use improves data
accuracy and increase timeliness of the information
processed
They demand high quality of input document because of
direct date entry from source documents, documents are
typed properly
Muhammad Luqman (UOS)
26. Form design and ink specification usually becomes
more critical with the use of these devices than
keyboard devices are used to key in data from forms
Muhammad Luqman (UOS)
27. An image scanner is an input device that translates
paper documents into an electronic format that can be
stored in a computer
The Input document may be typed text, pictures,
graphics, or even handwritten material
Muhammad Luqman (UOS)
28. When image scanners are used for inputting
Muhammad Luqman (UOS)