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Codes consisting of light and dark marks which may be optically read is known as

A. Mnemonics

B. Bar code

C. Decoder

D. All of the above

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

You can do it
  1. The first machine to successfully perform a long series of arithmetic and logical operations was:
  2. Which statement is valid?
  3. As compared to the secondary memory, the primary memory of a computer is
  4. MSI stands for
  5. Which generation of computer is still under development
  6. A computer program that converts an entire program into machine language is called a/an
  7. A storage area used to store data to a compensate for the difference in speed at which the different…
  8. Which is a unit representing the no bits of discrete.
  9. A language which is close to that used within the computer is
  10. Main storage is also called
  11. Which of the following is intended to be used in all applications runs on mainframe computers.
  12. The digital computer was developed primarily in
  13. The device that can both feed data into and accept data from a computer is
  14. A song being played on computer speaker is
  15. Which of the following statements is true?
  16. Which of the following required large computer memory?
  17. Which is the limitation of high level language?
  18. Which of the following programming language started from second generation?
  19. What is the responsibility of the logical unit in the CPU of a computer?
  20. Which of the following is not valid statement?
  21. Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU…
  22. Which device can understand difference between data & programs?
  23. ________ is the process of dividing the disk into tracks and sectors.
  24. Which of the following are the two main components of the CPU?
  25. What do you call the translator which takes assembly language program as input & produce machine language…
  26. Most of the first generation computers were
  27. High density double sided floppy disks could store of data
  28. The difference between memory and storage is that memory is ______ and storage is
  29. John Napier invented Logarithm in
  30. The personnel who deals with the computer & its management put together are called