Input devices [autosaved]
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This document discusses various input methods for computers beyond keyboards and mice. It describes pen and touchscreen input systems used on tablets and handheld devices. It also outlines optical input technologies like bar code readers and image scanners that allow computers to interpret light-based inputs. Microphones and webcams are mentioned as audio-visual input devices that enable voice recognition, video chatting, and recording of sound and images.
![It is used to convert images to readable text.
It translates array of dots[bitmap] into text.
Highly complex and not 100% reliable.
Uses of OCR
OCR Used to Recognize
Words.
Converts faxes directly
into text.](https://image.slidesharecdn.com/inputdevicesautosaved-140918123014-phpapp01/85/Input-devices-autosaved-11-320.jpg)
Input devices [autosaved]
- 1. Inputting data in other ways
- 2. Most important devices are designed to used by hands. Pens Touch screens Game controllers
- 3. Many tablet Pcs, PDA and other type of and handheld computers contain pen based system.which is used to input data This device is also called stylus. They are easy in use no training is needed.
- 4. Pens are used as both mouse and keyboard. Used to create shortnotes. Pen based system commonly used for data collection. Also used for inputting message that is stored and transmitted as graphic image such as fax.
- 5. Touch screens are used by fingertips. Sensors are used to detect the touch of fingers. Uses They are used in fast-food restaurants, Department stores,drug stores and supermarkets,
- 6. It is also used as input device Types Game pads Joy sticks Joy sticks They have been used for long time and can be used with applications other than games. It enable user to fly and drive.
- 7. it is a small flat device.it usually provide two set of controls.it is very flexible and are used to control many kinds of games.
- 8. Optical technologies allow computer to use light as a source of input. Bar code readers Image scanner Bar code readers Most widely used Light sensitive detector Types Of Bar Code Readers Flatbed Model Handheld Bar Code Reader
- 9. it is commonly found in supermarkets and departmental stores. Image scanners It is also called scanner. It converts any printed image Into electronic form. Color sensors use filter to Separate components of color.
- 10. Flatbed Model Offer higher-quality reprodution Can scan a page in a single pass. Handheld scanners More portable Require multiple passes to scan a page Uses of scanners A scanner is used to input paper documents or photos into the computer. You can turn a good flatbed scanner into a copying machine .
- 11. It is used to convert images to readable text. It translates array of dots[bitmap] into text. Highly complex and not 100% reliable. Uses of OCR OCR Used to Recognize Words. Converts faxes directly into text.
- 12. New computers have feature that enable them to record audio and video, input and play it back. Microphones An instrument for converting sound waves into electrical energy variations, which may then be amplified.
- 13. A microphone could be used for on a computer. Voice recognition Computer gaming Online chatting Recording voice for dictation, singing, and podcasts Recording musical instruments
- 14. A webcam is a hardware camera connected to a computer that allows anyone connected to the Internet to view either still pictures or motion video of a user or other object.
- 15. A camera that stores the pictures or video it takes in electronic format instead of to film. There are several features that make digital cameras a popular choice when compared to film cameras.