21. Transformation of input into output is performed by
A. CPU
B. The input-output unit
C. Peripherals
D. UPS
22. Which of the following printers are non-impact printers?
A. Laser Printer and Drum Printer
B. Bubble Jet Printer and Daisy Wheel Printer
C. Inkjet Printers and Dot Matrix Printers
D. Laser Printers and Inkjet Printers
23. Which is today’s most popular USB flash drive portable device?
A. CD
B. DVD
C. Floppy Drive
D. Pen drive
24. How can we set multiple recycle bins for a hard disk ?
A. You can make any one of them default recycle bin.
B. You can choose which recycle bin to use to store your deleted files.
C. Try with a different name.
D. You can set a different size for each recycle bin.
25. Flash drive is popularly known as
A. Microprocessor
B. RAM
C. ROM
D. Pen drive
26. In computer terminology, OCR stands for
A. Optical Character Reader
B. Optical Card Reader
C. Office Cash Receiver
D. Online Computer Retrieval
27. What is a light pen?
A. Mechanical Input device
B. Optical output device
C. Optical input device
D. Electronic input device
28. The most common input device used today is
A. Track ball
B. Scanner
C. Mouse
D. Keyboard
29. In the computer terminology IME stands for
A. Infinite Memory Engine
B. Input Method Editor
C. Inside Microsoft Excel
D. Immediate
30. A barcode reader is and example of
A. processing device
B. storage device
C. input device
D. output device