Question

(28)
(29)
(A) Scanning devices (B) Keyboard (C) Joystick
(D) Mouse
Which of the following is like a copier machine?
(A) Barcode reader (B) Keyboard
(C) Joystick
(D) Mouse
Which of the following scanners can recognize a letter from an image?
(A) Barcode Reader (B) OCR
(C) OMR
(D) MICR
Which of the following components of the operating system interacts with the user?
(A)Shell
(B) Kernel
(C) Device drivers (D) 1/0 devices
Dot matrix printer is also called
(30)
(31)​

Answer 1

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