第5章-計算機(jī)組成(已修改)
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【正文】 Chapter 5 Computer OrganizationBy 黃永平，權(quán)勇，孫永雄，王智，豐小月，孫銘會Knowledge point:. three subsystems that make up a puter. functionality of each subsystem. memory addressing and calculating the number of bytes. addressing system for input/output devices.. the systems used to connect different ponents together.Multiplechoice Questions39. The ___ is a puter subsystem that performs operations on data.( Knowledge point )a. CPUb. memoryc. I/O hardwared. none of the above40. ____ is a standalone storage location that holds data temporarily. ( Knowledge point )a. An ALUb. A registerc. A control unitd. A tape drive41. ____ is a unit that can add two inputs. ( Knowledge point )a. An ALUb. A registerc. A control unitd. A tape drive42. A register in a CPU can hold ____.( Knowledge point )a. datab. instructionsc. program counter values of the above43. A control unit with five wires can define up to ____ operations. ( Knowledge point )a. 5b. 10c. 16d. 32 44. A word is ____ bits. ( Knowledge point )a. 8b. 16c. 32d. any of the above45. If the memory address space is 16 MB and the word size is 8 bits, then ____ bits are needed to access each word. ( Knowledge point )a. 8b. 16c. 2446. The data in ____ are erased if the puter is powered down. ( Knowledge point )a. RAMb. ROMc. a tape drived. a CDROM47. ____ is a memory type with capacitors that need to be refreshed periodically. ( Knowledge point )a. SRAMb. DRAMc. ROMd. all of the above48. ____ is a memory type with traditional flipflop gates to hold data. ( Knowledge point )a. SRAMb. DRAMc. ROMd. all of the above 49. There are ____ bytes in 16 terabytes. ( Knowledge point )b. 240d. 25650. ____ can be programmed and erased using electronic impulses but can remain in a puter during erasure. ( Knowledge point )a. ROMb. PROMc. EPROMd. EEPROM51. ____ is a type of memory in which the user, not the manufacturer, stores programs that c
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