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Which of the following is a secondary memory device?

A. Keyboard

B. Disk

C. ALU

D. All of the above

You can do it
  1. When was vacuum tube invented?
  2. In 1999, the Melissa virus was a widely publicised:
  3. Microprocessors as switching devices are for which generation computers
  4. A technique used by codes to convert an analog signal into a digital bit stream is known as
  5. Daisy wheel printer is a type of
  6. Microprocessors can be used to make
  7. What is the first stage in software development?
  8. Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
  9. Size of the primary memory of a PC ranges between
  10. Software in computer
  11. The first general purpose electronic digital computer in the world was
  12. A memory that does not change its contents without external causes is known as
  13. Which of the following is a part of the Central Processing Unit?
  14. The brain of any computer system is
  15. ________ computer is small general purpose micro computer, but larger than portable computer
  16. A device that connects to a network without the use of cables is said to be-
  17. Which statement is valid about computer program?
  18. The secondary storage devices can only store data but they cannot perform
  19. Which of the following are the best units of data on an external storage device?
  20. High level language is also called
  21. Which of the following is the most powerful computers?
  22. Which of the following is related to fifth generation computers?
  23. In what respect human beings are superior to computers?
  24. EBCDIC stands for
  25. Integrated Circuits (Ics) are related to which generation of computers?
  26. What was the expected feature of fifth generation computers when Japan started FGCS?
  27. The organization and interconnection of the various components of a computer system is
  28. Storage capacity of magnetic disk depends on
  29. CD-ROM stands for
  30. UNIVAC was a first generation computer. What is its full form?