78. What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time? A) Bus control B) Interrupts C) Bus arbitration D) Status 79. Where as a computer mouse moves over the table surface, the trackball is A) Stationary B) Difficult to move C) Dragged D) Moved in small steps 80. Which of the following is used as a primary storage device? A) Magnetic drum B) Hard Disks C) Floppy D) All of above These 100 MCQ questions from fundamentals of computer is distributed through mcqSets.com. Fundamentals of Computer is one of the most weighted topic on most of the competitive computer jobs exams. 81. Multi user systems provided cost savings for small business because they use a single processing unit to link several A) Personal computers B) Workstations C) Dumb terminals D) Mainframes 82. What are the three decisions making operations performed by the ALU of a computer? A) Grater than B) Less than C) Equal to D) All of the above 83. The word processing task associated with changing the appearance of a document is A) Editing B) Writing C) Formatting D) All of above