An OMR (Optical Mark Recognition) is a scanner that reads the reflection of light from a specially designed design.
Input device
No, it is an input device as it reads (and does not write)
An optical drive is an input and output device. It reads data from optical discs like CDs and DVDs (input) and writes data to these discs (output).
The full form of MICR is Magnetis Ink Character Reader.
I expect you mean "Is Card reader/writer input or output?". If this is so, it is both an input and output device. Whenever you are trying to categorize a device as Input or Output, think of how it looks from the computer.If the computer is transmitting data to it, it is an Output device.If the computer is receiving data from it, it is an Input device.
It scans and input data into a PC. (Input device)
yes it probably be a output device .....you may check further too
What is a device that transfers hard copies to a computer
A bar code reader is an input Device. Although they sometimes output a visible light, the purpose is to gather data from a printed code and input that data into your system (computer, Point of Sale, etc.)
Optical Mark Reader (OMR)
A CD or DVD drive is a media device. Data is usually read from it, but data can also be sent to it if it has writing capabilities.
Input Devices:Keyboard, Mouse, Scanner, Microphone, Joystick, Web Cam, Optical Mark Reader, Optical Character Reader, Optical Bar code Reader, Touch Pen, Graphic digitizer, light pen, Touch pad\screen, Track ballOutput Devices:Monitor, Printer, Plotter, SpeakerBoth:CD, Pen-drive, MODEM, hard drive, tape drive, disk drive