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What is a light pen?

A. Mechanical Input device

B. Optical input device

C. Electronic input device

D. Optical output device

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  1. The value of each bead in earth is
  2. Digital devices are
  3. A number system that has eight different symbols to represent any quantity is known as
  4. An application suitable for sequential processing is
  5. Which unit holds data permanently?
  6. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
  7. ALU and Control Unit jointly known as
  8. Which is a semi conductor memory?
  9. A hard copy would be prepared on a
  10. Before a disk can be used to store datA. It must be
  11. The act of retrieving existing data from memory is called
  12. What is the path from which data flow in a computer system is known as
  13. Which of the following require large computers memory?
  14. Which was the world's first microcomputer that used Intel 80386 microprocessor chip?
  15. The output quality of a printer is measured by
  16. ASCII and EBCDIC are the popular character coding systems. What does EBCDIC stand for?
  17. Mnemonic a memory trick is used in which of the following language?
  18. One computer that is not considered a portable is
  19. Computers process data into information by working exclusively with :
  20. ASCII and EBCDIC are the popular character coding systems. What does ASCII stand for?
  21. Instruction in computer languages consists of
  22. An application suitable for sequential processing is
  23. The difference between memory and storage is that memory is ______ and storage is
  24. Any storage device added to a computer beyond the immediately usable main storage is known as
  25. Which of the following is not a class based on size?
  26. Which of the following memories need refresh?
  27. The Width of a processor's data path is measured in bits. Which of the following are common data paths?
  28. To produce high quality graphics (hardcopy) in color, you would want to use a/n
  29. The system unit of a personal computer typically contains all of the following except:
  30. Mnemonic a memory trick is used in which of the following language?