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 yup
  1. The system unit of a personal computer typically contains all of the following except:
  2. Who developed a mechanical device in the 17th century that could add, subtract, multiple, divide and…
  3. The main electronic component used in first generation computers was
  4. Which of the following is a class of computers based on model?
  5. High density double sided floppy disks could store of data
  6. The brain of any computer system is
  7. What was the expected feature of fifth generation computers when Japan started FGCS?
  8. Find out who is not the inventor of transistors among following names
  9. VDU is also called
  10. Which is not a computer classification?
  11. The process of transferring files from a computer on the Internet to your computer is called
  12. It was in 2028 BS the was brought in to calculate census datA.
  13. BCD is
  14. Microprocessors as switching devices are for which generation computers
  15. What is a brand?
  16. For which of the following computers can't be used?
  17. Which of the following is used for manufacturing chips?
  18. What does the disk drive of a computer do?
  19. The arranging of data in a logical sequence is called
  20. Which of the following programming language started from second generation?
  21. A normal CD- ROM usually can store up to _________ _data?
  22. CD-ROM stands for
  23. Seek time is
  24. The term GIGO is related to
  25. Coded entries which are used to gain access to a computer system are called
  26. WAN is a most used abbreviation in Networking, what is its full form?
  27. First generation computers used _________ for memory
  28. The Second Generation Computer was based on ________.
  29. How many bit code is used by Murray code for TELEPRINTER machines.
  30. An input /output device at which data enters or leaves a computer system is