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Who invented vacuum tubes?

A. John Bardeen

B. William Shockley

C. Lee de Forest

D. All of above

You can do it
  1. A computer programmer
  2. Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
  3. Before a disk drive can access any sector record, a computer program has to provide the records disk…
  4. The symbols used in an assembly language are
  5. A modem is connected to
  6. Which of the following languages is more suited to a structured program?
  7. Symbolic languages were developed in
  8. Which computer support co-processors?
  9. Which of the following is required when more than one person uses a central computer at the same time?
  10. The word Abacus is derived from Abax, a word from
  11. WAN is a most used abbreviation in Networking, what is its full form?
  12. Which of the following is input device?
  13. A device invented by Dr. Bobeck in 1966, for mass storage of data is
  14. Before a disk drive can access any sector record, a computer program has to provide the record's disk…
  15. Which of the following is not a storage medium?
  16. Which of the following term means to reckon?
  17. Which of the following does not store data permanently?
  18. Which of the following programming language started from second generation?
  19. A factor which would strongly influence a business person to adopt a computer is its
  20. Which unit converts computer data into human readable form?
  21. The difference between memory and storage is that memory is _____ and storage is __
  22. Which of the following class of computers can process physical quantities such as speed?
  23. Registers, which are partially visible to users and used to hold conditional, are known as
  24. Which device is used to backup the data?
  25. A computer program that converts an entire program into machine language is called a/an
  26. First generation computers used _________ for memory
  27. A system is
  28. A computer Program that translates one program instruction at a time into machine language is called…
  29. The term GIGO is relate to which characteristics of computers?
  30. A set of flip flops integrated together is called ____