logging in or signing up INPUT DEVICES chetanjain Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 7548 Category: Science & Tech.. License: All Rights Reserved Like it (4) Dislike it (0) Added: July 06, 2010 This Presentation is Public Favorites: 7 Presentation Description No description available. Comments Posting comment... By: chetanjain (14 month(s) ago) give me ur email address Saving..... Post Reply Close Saving..... Edit Comment Close By: parthikmamrawala (14 month(s) ago) very very nice......... plz download on my e mail Saving..... Post Reply Close Saving..... 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Slide 5: DIFFERENT INPUT DEVICES KEYBOARD MOUSE JOYSTICK SCANNER TRACK BALL TOUCH SCREEN DATA GLOVE BAR CODE READER Slide 6: KEY BOARD Slide 7: KEY BOARD KEYBOARD- The KEYBOARD is a way to input letters or numbers into different applications of programs. A keyboard also has special keys that help operate the computer. The most popular keyboard used today is the 101-keys QWERTY keyboard. Slide 8: TYPES OF KEYS IN KEYBOARD Alphabetic Keys Numeric Keys Function Keys Navigation keys Extra Keys Slide 9: Qwerty keyboard Slide 10: MOUSE Slide 11: A MOUSE function as a point-and-draw device by detecting two-dimensional motion relative to its supporting surface. We can use it only with GUI (Graphical user interface) based on operating system. E.g. Windows. The main goal of any mouse is to translate the motion of your hand into signals that the computer can use. MOUSE Slide 12: MECHANICAL MOUSE- A mouse that uses a rubber ball that makes contact with wheels inside the unit when it is rolled on a pad of desktop. 1: Moving the mouse turns the ball2: X or Y rolls grip the ball and transfer movement.3: Optical encoding disks include light holes.4: Infrared LEDs shine through the disks.5: Sensors gather light pulses to convert to X and Y Velocities. OPERATING OF A MECHANICAL MOUSE: TYPES OF MOUSE Slide 13: OPTICAL MOUSE- A mouse that uses light to detect movement. It emits a light and senses its reflection as it is moved. As the user rolls the mouse on a flat surface, the cursor on the screen also moves in the direction of the mouse’s movement. OPTICAL MOUSE Slide 14: JOYSTICK Slide 15: JOYSTICK JOYSTICK- A JOYSTICK is used to move the cursor from place to place, and allow moves in all directions and controls the movement of cursor. If offers three types of control such as digital, glide, direct. They input directional data like a mouse but work by switches as the joystick is moved. It consist of a stick that rotate on axis and reports it angle or direction to the device it is controlling. A joystick is used mostly for computer games. Slide 16: JOYSTICK Slide 17: SCANNER Slide 18: SCANNER SCANNER- A SCANNER is used to copy pictures of other things and save them as files in the computer. A light moves slowly over the surface of the picture of object to be scanned. The colors of the reflected light are detected and digitized to built up a digital image. Slide 19: SCANNERS FLATE-BED SCANNER- A FLATE-BED scanner is like a copier machine consisting of a box having a glass plate on its top and a lid that covers the glass plate. Its also called desktop scanners, are the most versatile and commonly used scanners. SHEET-FED SCANNER- It is similar to FLATE-BED scanner except the document is moved and the scan head is immobile. A sheet-fed scanner looks a lot like a small portable printer. HAND-HELD SCANNER- A HAND-HELD scanner has a set of light emitting diodes encased a small case that can be held in hand conveniently to scan a Documents. It is use the same basic technology as a Flat-Bed scanner. This type of scanner typically does not provide good image quality. However , it can be useful for quickly capturing text. Slide 20: TRACK BALL Slide 21: TRACK BALL TRACK BALL- A TRACK BALL is used the same way as a mouse but it is useful where desk space is limited. It is like an upside down mouse because the user rotates the ball and the main body parts stays still. It has buttons like a standard mouse. Slide 22: TOUCH SCREEN Slide 23: TOUCH SCREEN TOUCH SCREEN- A TOUCH SCREEN is a computer display screen that is sensitive to human touch, allowing a user to interact with the computer by touching pictures or words on the screen. Touch screens are used with information, computer-based training devices, and system designed to help individuals who have difficulty manipulating a mouse with keyboard. Slide 24: LIGHT PEN Slide 25: LIGHT PEN LIGHT PEN- A LIGHT PEN is a hand-held electro-optical pointing input device that utilize a light-sensitive detector to allow the computer to determine where on that screen the pen is aimed. It facilities drawing images and select objects on the display screen by directly pointing the object with the pen. Slide 26: DATA GLOVE Slide 27: DATA GLOVE- DATA GLOVE is a device to interact with animated artificial object. The person wears a glove fitted with sensors and electrical wires hooked to compatible computer. As he rotates or move his hand and manipulate his fingers, he can manipulate the graphic object on the screen. DATA GLOVE Slide 28: BAR CODE READER Slide 29: BAR CODE READER BAR CODE READER- Bar code is a machine readable code in the form of a pattern of parallel vertical lines of varying width which is read by bar code reader. Bar code reader is a electronic device that scans a bar code image and converts it into an alphanumeric value that is feed in a computer which connected to a Bar code reader. It use a leaser beam scanning technology. It is commonly use for labeling Goods in super market, Books in library, Package, Badges etc. Slide 30: OTHER INPUT DEVICES DIGITAL CAMERA MICROPHONE DISK DRIVER DIGITISERS OPTICAL READER(OR) – 1. Optical character recognition 2. Optical mark recognition 3. Magnetic ink character recognition Slide 31: THANK YOU You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.