(1) The manimum unit time of computer operation is ( ). A. Clock cycle B. Instruction cycle C. CPU sycle D. Intcrupt cycle (2) The computer is composed of many parts, the cose of which is ( ). A. Data bus B. Arithmetic logic operation unit C. Add up register D. Multiway switch (3) The instruction cycle refers to ( ). A. The time for the CPU to execute an instruction B. The CPU accesses an instraction from the main processor plus the time to execute the instruction C. Clock cycle time D. The time when the CPU accesses an instruction from the master (4) Because the CPU internal operation speed is fast, and the CPU access a memory time is long. so the machine period is asually defibed by ( ). A. Instruction cycle B. Access cycle C. Isteradidress period D. Execution period (5) The purpose of adding cache between main menory and CPU is ( ). A. Solve the specd matching problem between CPU and main menory B. Expand the main storage capacity (Compuler Frinsiples) Find-lerm Exam C. It not only expands the main storage capacity, but also improves the access speed D. Expand auxiliary storage sapacity A. 1,0010110 B, 0.0010110 C. 1.0010101 D. 0.1101010 (6) Compared with external memory, internal memory is charecterized by ( ). A. Large capacity, fast speed, low cost B. Large capacity, slow speed, high cost C. Small capacity, fast speed, low cost D. Small capacity, fast speed, high cost (7) ( ) is used widely in processors to represent signed integers. A. I's complement B. unsigned number C. 2's complement D. sign magnitude (8) The minimal number of the following numbers is ( ). A. (101110). B. (66) C. (10110])= D. (39)h (9) The largest number of the following is ( ). A. (98)is B. (10011101)2 C. (140)n D. (225s (10) In order to facilitate the implementation of enulti-level interrupt, the most effective way to save site information is to adopt ( ). A. general register B. storage C. Extcrnal storagc D. stack