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Punched cards were first introduced by

A. Powers

B. Pascal

C. Jacquard

D. Herman Hollerith

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

You can do it
  1. Which of the following memories must be refreshed many times per second?
  2. A byte consists of
  3. What is the date when Babbage conceived Analytical engine
  4. Who built the first Mechanical Calculator?
  5. The digital computer was developed primarily in
  6. Which device is used as the standard pointing device in a Graphical User Environment?
  7. A stand-alone system which produces one page of printed output at a time is
  8. Which device is required for the Internet connection?
  9. IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives…
  10. A type of channel used to connect a central processor and peripherals which uses multiplying is known…
  11. Which of the following disk is fixed disk?
  12. When creating a computer program, the ________ designs the structure of the program
  13. Which of the following is considered first computer in the world?
  14. Which of the following registers is loaded with the contents of the memory location pointed by the PC?
  15. Hard disk is coated in both side with
  16. What is the main difference between a mainframe and a super computer?
  17. Which of the following storage devices can store maximum amount of data?
  18. ________ Is the appearance of typed characters?
  19. How was the generation of computer classified?
  20. Which of the following is first generation of computer?
  21. Which of the following is NOT one of the four major data processing functions of a computer?
  22. Which of the following devices have a limitation that we can only store information to it but cannot…
  23. A dumb terminal has
  24. The time required for the fetching and execution of one simple machine instruction is
  25. The purpose of vacuum tube was to NOT act like
  26. The word processing task associated with changing the appearance of a document is
  27. Which type of system puts the user into direct conversation with the computer through a keyboard?
  28. Which American computer company is called Big Blue?
  29. What does the disk drive of a computer do?
  30. Which of the following is/ are operating systems