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16. Which of the following devices can be used to directly input printed text
OCR
OMR
MICR
None of the above
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17. Modem stands for
A type of secondary memory
Modulator demodulator
Mainframe operating device memory
18. Which of the following does not represent on I/O device
speaker which beeps
joystick
plotter
ALU
19. A Winchester disk is a
Disk stack
Removable disk
Flexible disk
20. Terminal is
device to give power supply to the computer
the point at which data enters or leaves the computer
the last instruction in a program
any input /output device.
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