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Explain briefly any five pointing devices with the help of diagrams. What are flatbed scanners? Explain the basic function of a slide scanner. Which of the following printers print by spraying ink on the paper? A. Daisy wheel printer B. Dot matrix printer C. Drum printer D. Laser printer

Which of the following are the components of a projector? A. Optic system B. Displays C. Electron beam D. Both A and B Which of the following are portable projectors? A. Conference room projectors B. Fixed installation projectors C. Ultralight projectors D. All of the above Which of the following devices are included in a

Which of the following is one of the components of a CRT? A. Toner B. Liquid crystals C. Electromagnetic coils D. None of the above In which of the following plotters, both pen and papers are moved to produce an image? A. Drum plotter B. Electrostatic plotter C. Flat-bed plotter D. Ink-jet plotter In which

Which of the following is a hard copy output device? A. Printer B. Speaker C. Display monitor D. Projector Which of the following is an impact printer? A. Dot matrix printer B. Ink-jet printer C. Laser printer D. All of the above Which of the following is a non-impact printer? A. Daisy wheel printer B.

Name the different types of monitors available in the market. Explain the use of a printer in a computer system. Differentiate between an impact printer and a non-impact printer. Give one example of each. Briefl y explain the different types of impact printers. Explain the different types of non-impact printers.

Which of the following is a type of terminal? A. Intelligent terminal B. Dumb terminal C. Both A and B D. All of the above What is an output device? Why is it a vital part of computer hardware? 2. Name some of the output devices, which are commonly used with the computer system. Define

What are the advantages and disadvantages of a daisy wheel printer? What are the characteristics of a laser printer? 11. What is the use of plotters? Defi ne a plotter. Explain at least two types of plotters. What are the advantages and disadvantages of a CRT monitor? Which is a better monitor—a CRT or a

EBCDIC code was developed by: A. Microsoft B. IBM C. Both by Microsoft and IBM D. None of the above Which of the following keys helps in displaying the value of the ASCII code? A. Alt key B. Shift key C. Ctrl key D. Tab key Which of the following is not a valid computer

Explain the different technical terms associated with the binary system. What is the weight of digit 5 in the decimal number 9536? What is the 4-bit binary representation of the decimal number 12? Explain in detail the concept of hexadecimal system. 7. What is BCD system and why is it called BCD? List the two

The hexadecimal equivalent of the octal number 4263 is: A. 8B3 B. A42 C. 923 D. BA31 What do you understand by positional number system and why is it called a positional system? What are the different types of positional number systems? Which of the positional systems is mostly used by the computer systems?