4-42. 4-43. 4-44. 4-45. 4-46. 4-47. Which of the following references contains the test documentation and procedures, test equipment, and tools required to perform corrective maintenance on a specific computer? 1.  Technical  manual/owner’s  manual 2.   MRC 3. Ship’s electronics equipment doctrine 4.  CSOSS  documentation Which of the following functional areas provide(s) the means for the CPU, memory, and I/O to communicate with each other? 1. System cables 2. System buses 3. System modem 4. Wire bundles What two interacting sections compose the CPU? 1. Control and memory 2. ALU and memory 3. Control and ALU 4. ALU and I/O All of the following are characteristics of the CPU’s control section except which one? 1. Whereto store information and who to talk with 2. How to compute logical solutions 3. When to start and stop 4. What to do The control section may provide the computer with the ability to function under which of the following conditions? 1.  Manual  control  only 2.  Program  control  only 3. Manual and program control 4. Interface control The control section includes all the following logically designed areas except which one? 1. Timing, and instruction and control 2.  Fixed-  and  floating-point  operations 3. Memories-control, cache, and read-only 4.  Addressing  and  interrupts 4-48. What logically designed area in the control section regulates the operation of the computer? 1.  Instruction  and  control 2.  Addressing 3.  Interrupts 4.   Timing 4-49. What type of timing is used for the execution of instructions stored sequentially in memory? 1. Arithmetic timing 2.  Synchronous  operations 3.  Master  clock  events 4.  Asynchronous  operations IN ANSWERING QUESTIONS 4-50 THROUGH 4-55, SELECT FROM THE FOLLOWING LIST THE LOGICALLY DESIGNED AREA THAT PERFORMS THE OPERATION DESCRIBED IN EACH QUESTION. 4-50. 4-51. 4-52. 4-53. 4-54. 4-55. 1. Master clock 2.  Main  timing  chain 3.  Main  timing  signals 4. Timing sequences Used to trigger a single-shot to enable and disable circuits in the sequence necessary to execute computer operations. Flip-flops are arranged in a ring counter to count master clock phases. Used to generate a command enable for sending data from one register to another. Taps on a delay line oscillator can be used to provide additional phases. Used to issue a series of commands to perform a particular instruction or operation. Used to start arithmetic timing and generate command enables used for arithmetic operations. 25