Joystick

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Joystick, Niraj Tutorials
1.Stick; 2.Base; 3.Trigger; 4.Extra Buttons; 5.Autofire Switch; 6.Throttle; 7.Hat Switch; 8.Suction Cup
A joystick is an input device consisting of a stick that mainly used with computer games & some times called a game controller. Joystick typically connect to your computer using a basic USB connection and often come with software that allows you to assign the function of each button.

Joystick have stick that can be rotated the left and right or up and down required to move the cursor.

Joystick are also used for controlling machines such as underwater unmanned vehicles, trucks, cranes and zero turning radius lawn mowers.

OCR (Optical Character Recognition)

As OCR stands for Optical Character Recognition, it is a widespread technology to recognize text inside images, such as scanned photos and documents. These technology is used to convert virtually any kind of images containing written text (hand written, type written or printed) into machine readable code and stores the text data on the system memory.

OMR (Optical Mark Recognition)

OMR is a special type of optical scanner. This device recognize the type of mark made by pencil of ink on a specially designed paper with boxes can be marked with dark pencil or ink. OMR is also known as Optical Mark Reading and Optical Mark Recognition.

It is specially used for checking the correct multiple choice questions n competitive exam.

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