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 electronic component was made out of semiconductor material?
  2. IBM System/360 is
  3. An error in software or hardware is called a bug. What is the alternative computer jargon for it?
  4. RAM is also called as
  5. Access time is
  6. ASCII stands for
  7. Operating system, editors, and debuggers comes under?
  8. High density double sided floppy disks could store _____ of data
  9. Analog computer works on the supply of
  10. Which statement is valid about computer program?
  11. Which of the following terms is the most closely related to main memory?
  12. A computer program that translates one program instructions at a time into machine language is called…
  13. MICR stands for
  14. Which of the following is a read only memory storage device?
  15. Who built the world's first electronic calculator using telephone relays, light bulbs and batteries?
  16. In analogue computer
  17. The brain of any computer system is
  18. Before a disk can be used to store datA. It must be
  19. Memory unit is one part of
  20. Which of the following required large computer memory?
  21. A term used to describe interconnected computer configuration is
  22. The programs which are as permanent as hardware and stored in ROM is known as
  23. MIS is designed to provide information needed for effective decision making by?
  24. A physical connection between the microprocessor memory and other parts of the microcomputer is known…
  25. Which of the following is not the classification of computers based on application?
  26. Switching device of fifth generation computer is________
  27. The act of retrieving existing data from memory is called
  28. The full form of ALU is
  29. A collection of related instructions organized for a common purpose is referred to as
  30. What is meant by a dedicated computer?