What is a light pen?

A. Mechanical Input device

B. Optical input device

C. Electronic input device

D. Optical output device

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. As compared to diskettes, the hard disks are
  2. EBCDIC stands for
  3. Raw facts and figures about any particular topic are
  4. The device that can both feed data into and accept data from a computer is
  5. Can you tell what passes into and out from the computer via its ports?
  6. Which of the following is a secondary memory device?
  7. Servers are computers that provide resources to other computers connected to a:
  8. Which of the following is true?
  9. Who is the inventor of ABC Computer?
  10. A storage area used to store data to a compensate for the difference in speed at which the different…
  11. When was Apple Macintosh II microcomputer introduced in the market?
  12. UNIVAC is
  13. An _________ Device is any device that provides information, which is sent to the CPU
  14. Which of the following can store information in the form of microscopic pits on metal disks.
  15. Which of the following memory medium is not used as main memory system?
  16. The brain of any computer system is
  17. Which part of the computer is used for calculating and comparing?
  18. The earliest calculating devices are
  19. A computer assisted method for the recording and analyzing of existing or hypothetical systems is
  20. What is the number of read-write heads in the drive for a 9- trac magnetic tape?
  21. Examples of output devices are
  22. A modern electronic computer is a machine that is meant for
  23. Which of the following is the most quickly accessible storage?
  24. Operating system, editors, and debuggers comes under?
  25. What is an interpreter?
  26. Which of the following is not processing?
  27. Storage capacity of magnetic disk depends on
  28. An integrated circuit is
  29. Which type of computers uses the 8-bit code called EBCDIC?
  30. Nepal brought a computer for census of 2028 BS. This computer was of