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. Slide Rules was invented in
  2. Magnetic disks are the most popular medium for
  3. The device that can both feed data into and accept data from a computer is
  4. Which is an item of storage medium in the form of circular plate?
  5. A name or number used to identify storage location devices?
  6. First generation computers used _________ for memory
  7. Most of the first generation computers were
  8. One millisecond is
  9. A program that is employed in the development, repair or enhancement of other programs is known as
  10. The capacity of 3.5 inch floppy disk is
  11. The two kinds of main memory are:
  12. When was the transistors invented?
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    Who invented the high level language C?
  14. Which of the following registers is used to keep track of address of the memory location where the next…
  15. A technique used by codes to convert an analog signal into a digital bit stream is known as
  16. The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately
  17. Which of the following have low failure rate?
  18. A number system that has eight different symbols to represent any quantity is known as
  19. Computer operators
  20. A paper printout of a document is known as
  21. Which of the following statement is false?
  22. Hardware or software designed to guard against unauthorized access to a computer network is known as…
  23. An integrated circuit is
  24. The first firm to mass-market a microcomputer as a personal computer was
  25. What are the computers called that performs calculations and comparisons usually in the binary numbering…
  26. The organization and interconnection of the various components of a computer system is
  27. Bit map terminal
  28. To move a copy of file from one computer to another over a communication channel is called?
  29. For what Antikyathera was used?
  30. A computer can solve more than one kind of problem. This is related to which of the following characteristics?