What is a light pen?

A. Mechanical Input device

B. Optical input device

C. Electronic input device

D. Optical output device

You can do it
  1. What is the name of the display feature that highlights are of the screen which requires operator attention?
  2. In latest generation computers, the instructions are executed
  3. Who invented the high level language C?
  4. The two kinds of main memory are:
  5. Which of the following have the fastest access time?
  6. When was vacuum tube invented?
  7. Who is credited with the idea of using punch cards to control patterns in a waving machine?
  8. Which of the following is machine independence program?
  9. Programs are executed on the basis of a priority number in a
  10. In the third Generation of computers
  11. The process of communicating with a file from a terminal is
  12. Which unit converts computer data into human readable form?
  13. Once you load the suitable program and provide required data, computer does not need human intervention.…
  14. Which of the following is not a form of data?
  15. Most important advantage of an IC is its
  16. ASCII stands for
  17. A stand-alone system which produces one page of printed output at a time is
  18. Which of the following term means to reckon?
  19. A computer program that translates one program instructions at a time into machine language is called…
  20. In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted…
  21. LSI, VLSI & ULSI chips were used in which generation?
  22. A language which is close to that used within the computer is
  23. Chief component of first generation computer was
  24. Touch Screen is________
  25. The Width of a processor's data path is measured in bits. Which of the following are common data paths?
  26. Web cam is an
  27. The word length of a computer is measured in
  28. FORTRAN is a programming language. What does FORTRAN stand for?
  29. In analogue computer
  30. Computers process data into information by working exclusively with :