What is the most common tool used to restrict access to a computer system?

A. User logins

B. Passwords

C. Computer keys

D. Access-control software

You can do it
  1. Which of the following devices can be sued to directly image printed text?
  2. An _________ Device is any device that provides information, which is sent to the CPU
  3. Who suggested Stored Program Concept
  4. The lower deck of an abacus is known as
  5. What is meant by a dedicated computer?
  6. Who suggested Stored Program Concept
  7. ________ is the science that attempts to produce machines that display the same type of Intelligence…
  8. The task of performing operations like arithmetic and logical operations is called
  9. Which of the following is required when more than one person uses a central computer at the same time?
  10. ________printer is the cheapest in terms of price and operating cost
  11. Which of the following is not true?
  12. A typical personal computer used for business purposes would have of RAM.
  13. What characteristic of read-only memory (ROM) makes it useful?
  14. Each model of a computer has a unique
  15. A storage system for small amounts of data is
  16. ________ refers to electronic trespassing or criminal hacking.
  17. Which is the highest form?
  18. A set of information that defines the status of resources allocated to a process is
  19. DOS stands for
  20. All modern computer operate on
  21. The full form of EEPROM is
  22. Personal computers used a number of chips mounted on a main circuit board. What is the common name for…
  23. Which of the following is not a class of computers based on size?
  24. Which of the following magazines covers only the IBM PC and its compatibles?
  25. Which of the following statements is true?
  26. Which of the following storage device can store the largest amount of data?
  27. CD-ROM is a
  28. In most of the IBM PCs, the CPU, the device drivers, memory, expansion slots and active components are…
  29. ________ computer is a medium sized computer
  30. Which of the following was a special purpose computer?