Which is considered a direct entry input device?

A. Optical scanner

B. Mouse and digitizer

C. Light pen

D. All of the above

You can do it
  1. Which of the following printers are you sure will not to use if your objective is to print on multi…
  2. Which computer was considered the first electronic computer until 1973 when court invalidated the patent?
  3. Serial access memories are useful in applications where
  4. Analog computer works on the supply of
  5. Regarding a VDU, Which statement is more correct?
  6. Which of the following is the 1's complement of 10?
  7. Which of the following is a read only memory storage device?
  8. Microprocessors as switching devices are for which generation computers
  9. The word processing task associated with changing the appearance of a document is
  10. An error in computer data is called
  11. A modern electronic computer is a machine that is meant for
  12. Through which device the main components of the computer communicate with each other?
  13. From which generation computers the printers were used?
  14. Mark I is also known as
  15. The personnel who deals with the computer & its management put together are called
  16. ________ computers operate essentially by counting
  17. The ALU of a computer normally contains a number of high speed storage element called
  18. A datum that indicates some important state in the content of input or output is
  19. In what respect computers are superior to human beings?
  20. Which of the following memories has the shortest access times?
  21. Current SIMMs have either or connectors (pins)
  22. Multi user systems provided cost savings for small business because they use a single processing unit…
  23. Second Generation computers were developed during
  24. An application suitable for sequential processing is
  25. How many bit code is used by Murray code for TELEPRINTER machines.
  26. Analog computer works on the supply of
  27. Which programming languages are classified as low level languages?
  28. When was vacuum tube invented?
  29. Note book, laptop, palm, hand-held computers are coming under the category of________ computer
  30. A hybrid computer