Hard disk is coated in both sides with

A. Magnetic metallic oxide

B. Optical metallic oxide

C. Carbon layer

D. All of the above

You can do it
  1. Which of the following is not a class of computers based on size?
  2. Which of the following is the most powerful computers?
  3. Computer instructions written with the use of English words instead of binary machine code is called
  4. Any device that performs signal conversion is
  5. Which of the following is not a valid size of a Floppy Disk?
  6. Which of the following programming language started from second generation?
  7. The language that the computer can understand and execute is called
  8. What difference does the 5th generation computer have from other generation computers?
  9. The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately
  10. WAN stands for
  11. What type of computers are client computers (most of the time) in a client-server system?
  12. Which of the following does not store data permanently?
  13. The term GIGO is related to
  14. A digital computer did not score over an analog computer in terms of
  15. The BIOS is the abbreviation of ________.
  16. Which of the following memories needs refreshing?
  17. Which computers are used as servers for any medium sized organizations?
  18. A compiler means
  19. Which of the following programming language started from second generation?
  20. CAD stands for
  21. Which of the following are (is) considered to be video component?
  22. Chief component of first generation computer was
  23. The examination and changing of single bits or small groups of his within a word is called
  24. Which of the following memory medium is not used as main memory system?
  25. Seek time is
  26. The first electronic computer was developed by
  27. The output quality of a printer is measured by
  28. Which one of the following input device is user- programmable?
  29. What is the most common tool used to restrict access to a computer system?
  30. Which of the following are input devices?