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Assignment 3-Cont. - 14100_416
Assignment 4 - 14100_418

Fire Controlman Volume 03-Digital Data Systems
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3-68. Aprogram has been installed and the computer is operating.  The  enabling  and  disabling  circuits will stop operating under each of the following conditions  except  which  one? 1.  Fault  condition  occurs 2. Programmed stop is reached 3. Program completion is reached 4.  Instructions  are  executing 3-69. The master clock in a computer is the key to the computer’s timing circuits. Master clocks usually operate at a frequency or pulse-repetition rate determined by which of the following factors? 1. The maximum speed of the operator 2. The minimum speed of the operator 3. The minimum rate the computer can handle data 4. The maximum rate the computer can handle data 3-70. In computer timing circuits, what is the most important reason for using oscillators? 1.  Their  output  characteristics 2.  Their  frequency  stability 3.  Their  phase  processing 4. Their speed IN ANSWERING QUESTIONS 3-71 THROUGH 3-74, SELECT FROM THE FOLLOWING LIST THE TYPE OF MULTIVIBRATOR DESCRIBED BY THE PHRASE IN EACH QUESTION. 1.  Monostable 2.  Bistable 3. Astable 3-71. The multivibrator that is also referred to as a one-shot   multivibrator. 3-72. The multivibrator that counts clock pulses. 3-73. The multivibrator also known as a free-running multivibrator. 3-74. The multivibrator used to enable logic gates. 3-75. A single-phase clock system has what types of multivibrators? 1. 2. 3. 4. Monostable and bistable Bistable and astable Monostable and astable Astable and multistable 21






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