Inputting data in other ways

Most important devices are designed to used by hands.

Pens

Touch screens

Game controllers

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.

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.

Touch screens are used by fingertips.

Sensors are used to detect the touch of fingers.

UsesThey are used in fast-food restaurants,

Department stores,drug stores and supermarkets,

It is also used as input device

Types Game pads Joy sticks

Joy sticksThey have been used for long time

and can be used with applications other than games. It enable user to fly and drive.

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.

Optical technologies allow computer to use light as a source of input.

Bar code readers

Image scanner

Bar code readersMost widely used

Light sensitive detector

Types Of Bar Code ReadersFlatbed Model

Handheld Bar Code Reader

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.

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 .

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.

New computers have feature that enable them to record audio and video, input and play it back.

MicrophonesAn instrument for converting sound waves into electrical energy variations, which may then be amplified.

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

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.

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.