Question

Which of the following is an output device?
A. OMR
B. MICR
C. Printer
D. Keyboard

Answer 1

Hint: An output device is a device that provides the user with the result of a computer process. We can see the result of the output device either by physically touching it or hearing it or by seeing it, etc.

Complete step by step answer:
OMR: OMR or Optical Mark Recognition, is a device capable of capturing human marked documents such as surveys and tests to a digital format. For a document to be read by the device it needs to be in a specified background. Since it takes data from the user, it is an input device.

MICR: MICR or Magnetic Ink Character Recognition, is a character recognition technology that is used to read characters in specified format. It is mostly used by the banking sector to read certain identifiers in the document, like cheque number, bank account number etc. The information is encoded in a MICR line. MICR is faster than OMR. Since it takes input from the user, it is an input device.

Printer: Printer is a device used to print/ represent graphics or text on paper. It takes documents on the computer and turns them into a hard copy. Since it gives the result of a computer process, it is an output device.

Keyboard: Keyboard is a typing device, used to input text to the computer. It consists of mechanical keys representing letters, symbols and numbers along with other functional keys. It is one of the principle ways to control the computer. Since it takes input from the user, it is an input device.

Therefore, the correct option is C.

Note: Students should remember the basic functions of the various peripherals of the computer.
Students often get confused with input and output devices. MICR can be confused as an output device as it scans and displays the information on the monitor. But MICR is input, it is used to read the code, whereas the monitor is an output device which displays the result of the code after the computer processes the code.