计算机组成原理题库.docx

1、计算机组成原理题库第一章问题 1The computer has experienced 4 generations, which are ( ).A. Transistors, SMI, Laser device, Optical mediumB. Vacuum Tubes, Transistors, SSI/MSI circuit, Laser deviceC. Vacuum Tubes, Digital tube, SSI/MSI circuit, Laser deviceD. Vacuum Tubes, Transistors, SSI/MSI circuit, LSI/VLSI ci

2、rcuit问题 2The components of CPU do not include ( ).A. Arithmetic unit B. memory C. register D. controller问题 3CPU can process information of external memory directly.A.对 B.错问题 4MFLOPS is a performance index for express the speed of processing the floating point number.A.对 B.错问题 5Although computer scie

3、nce and technology have changed tremendously both in hardware and in software, the basic model for computers has remained essentially the same, which was presented by ( ).A. Einstein B. Von Neumann C. Edison D. Newton问题 6In 8-bits micro-computer system, multiplication and division are realized by (

4、).A. dedicated chips B. firmware C. software D. hardware问题 7Software is equivalent to hardware in logic function.A.对 B.错问题 8Resources management of computer software and hardware is the duty of ( ).A. Operating System B. Language process programC. Database Management System D. Application program问题

5、9The reason of binary representation for information in a computer is it can easily process the information.A.对 B.错问题 10The basic feature of Von Neumann computer is ( ).A. access memory by address and execute instruction in sequenceB. access memory by contentC. Multiple Instruction Stream Single Dat

6、a Stream (MISD)D. operate stack问题 11Data and instructions are stored in ( ) when the program is running.A. memory B. disk C. datapath D. operating system问题 12The operating system is appeared in ( ).A. the 4th generation computers B. the 2nd generation computersC. the 3rd generation computers D. the

7、1st generation computers问题 13The so called “PC” belongs to ( ).A. Medium computers B. Mainframes C. Micro-computers D. Mini-computers问题 14Computer hardware consists of calculator, memory, controller and I/O devices.A.对 B.错问题 15( ) is not belonged to system program.A. Database system B. Operating sys

8、tem C. Compiler program D. the above all问题 16The vast majority of computer systems used today are constructed on ( ) computer model.A. intelligent B. Von Neumann C. parallel D. real time processing问题 17The use of ( ) signified the development of micro-computer.A. software B. disk C. Microprocessor D

9、. OS问题 18The use of microprocessor signified the development of micro-computer.A.对 B.错问题 19The reason why the binary system of representation is widely adopted in computer is ( ).A. computing speed fast B. convenience for information processingC. saving components D. the restriction of the nature of

10、 physical devices问题 20A full computer should consists of ( ).A. host and Peripheral B. calculator, memory and controllerC. host and program D. hardware and software system问题 21Host consists of CPU and I/O devices.A.对 B.错问题 22In a computer based on the von Neumann model, instructions and data are all

11、 stored in memory, and CPU distinguish them according their address. A.对 B.错问题 23System software is purchased, and applied software is edit by ourselves.A.对 B.错问题 24Which of the following languages can be implemented directly and edited by Mnemonic(助记符): Assembly language; machine language; High-lev

12、el language; Operating system primitives; Regular languageA. , B. ， C. ， D. ，问题 25In computer terminology, CPU consists of calculator and controller.A.对 B.错第二章问题 1If X 2s complement = 0.1101010，then Xsign-magnitude = ( )A. 0.0010110 B. 1.0010110 C. 1.0010101 D. 0.1101010问题 2( ) is used to represent

13、address in computer.A. 1s complement B. unsigned number C. 2s complement D. sign magnitude问题 3Numbers X1, X2 are integer, and 【X1】2s compl = 10011011，【X2】 2s compl = 00011011, then their true value of decimal form are _-101_ and _27_。问题 4The sign-magnitude representation of 0 is unique.A.对 B.错问题 5Pl

14、us two 2s complement numbers that adopt 1 sign bit, overflow must occur when ( ).A. carry signal is generated from the sign bitB. XOR operation for carry signal generated from the sign bit and carry signal generated from the highest numerical bit is 0C. XOR operation for carry signal generated from

15、the sign bit and carry signal generated from the highest numerical bit is 1D. XOR operation for carry signal generated from the sign bit and carry signal generated from the highest numerical bit is 1问题 6The range of representation for a 1s complement number system of 64 bits (including the sign bit)

16、 is ( ).A. 0|N|263 1 B. 0|N|262 1 C. 0|N|264 1 D. 0|N|263问题 7Fixed point number can be classified into pure decimal(纯小数) and pure integer(纯整数).A.对 B.错问题 8In fixed point calculator, whether adopted double sign bit or single sign bit, it must has ( ), which is often implemented by ( ).A. Decoding circ

17、uit, NAND gate B. encoding circuit, NOR gateC. overflow detection circuit, XOR gate D. shift circuit, AND-OR gate问题 9Arithmetic shift 2s complement of a positive, sign bit remains unchanged, and the blank bit fills in 0. Arithmetic left shift 2s complement of a negative, sign bit remains unchanged,

18、and the low bit fills _0_. Arithmetic right shift 2s complement of a negative, sign bit remains unchanged, and the high bit fills_1_, and truncat low bit.问题 10Let the word length is 8, the fixed point integer with 2s complement representation of -1 is _11111111_.问题 11In fixed point operation, it wil

19、l be overflow when the result exceeds the represent range of the computer.A.对 B.错问题 12For a 8-bit 2s complement representation integer number, its minimal value is_-128_, its maximal value is_127_.问题 13A fixed point number is composed of sign bit and numerical part.A.对 B.错问题 14The range of represent

20、ation for a 2s complement number system of 16 bits (including the sign bit) is ( ).A. -215 + (215 -1) B. - (215 1) + (215 1) C. -215 + 215 D. - (215 +1) + 215 问题 158-4-2-1 BCD code of a number is 0111 1000 1001， then its true value is_789_.问题 16The addition/subtraction algorithm for sign magnitude r

21、epresentation is rather simple.A.对 B.错问题 17Which of the following numbers is odd parity?A. 010110011 B. 001000111 C. 110100111 D. 110100111问题 18The number represented in the computer sometimes will be overflow, the fundamental reason is the limited computer word length.A.对 B.错问题 19For fixed point bi

22、nary calculator, subtraction is implemented through ( ).A. 2s complement binary subtractor B. 2s complement binary adderC. sign magnitude decimal adder D. sign magnitude binary subtractor问题 20In 2s complement addition/subtraction, using 2 sign bits for overflow detection, when the 2 sign bits S1S2 e

23、quals 10, it means that ( ).A. result is positive, with no overflow B. result is negative, with no overflowC. result is overflow D. result is underflow问题 21The 2s complement representation of -127 is 10000000.A.对 B.错问题 22The minimal number of the following numbers is ( ).A. （100101）2 B. （100010）BCD

24、C. （50）8 D. （625）16问题 232s complement representation of 0 equals to 1s complement representation of -1.A.对 B.错问题 24If X2s complement = 1.1101010，then Xsign-magnitude = （）A. 1.0010101 B. 1.0010110 C. 0.0010110 D. 0.1101010问题 25For sign magnitude representation, 1s complement representation, 2s comple

25、ment representation,_ sign magnitude representation _ and_1s complement representation _has 2 representations of 0.问题 26The use of 2s complement operation is adopted to simplify the design of computer.A.对 B.错问题 27Fixed point calculator is used for ( ).A. fixed point operation B. floating point opera

26、tionC. fixed point operation and floating point operation D. decimal addition问题 28When -1x0, xsign-magnitude = （）A. 1-x B. (2-2-n)-|x| C. 2+x D. x问题 29The maximal number of the following numbers is ( ).A. （227）8B. （96）16C. （10010101）2D. （143）5问题 308-4-2-1 code is binary number.A.对 B.错问题 31A decimal

27、number is 137.5, then its octal form is _211.4_, its hexadecimal form is_ 89.8_.问题 32For a 8-bit 1s complement representation integer number, its minimal value is_-127_, its maximal value is_127_.问题 33The （）representation of 0 is unique.A. sign magnitude and 1s complementB. 1s complementC. 2s comple

28、mentD. sign magnitude问题 34The range of representation for a unsigned binary number system of 16bits is_0_65535_.问题 35Given 【x1】 2s compl =11001100， 【x2 】sign mag =1.0110, the decimal value of x1 and x2 are_-52_ and _-0.375_.第五章问题 1Calculator has many components, but data bus is the key part.A.对 B.错问

29、题 2In an adder, the carry generate variable (G) of bit i is ( ).A. XiYiB. XiYiCiC. XiYiCiD. XiYi问题 3The carry look-ahead circuit chip 74182 realizes the carry logic between groups in parallel.A.对 B.错问题 4The subtraction algorithm of fixed point binary is realized by ( ).A. subtraction for sign magnit

30、ude representationB. addition for binary code decimalC. addition for 2s complement representationD. subtraction for 2s complement representation问题 5The main function of ALU is ( ).A. arithmetic operationB. only addition operationC. logic operationD. logic and arithmetic operation问题 6In a ripple-carr

31、y adder, the key factor affecting the speed of the adder is ( ).A. Gate-level delayB. speed of componentsC. various speed of each full adder for bit iD. carry propagation delay问题 7A calculator consists of many components, but the key component of calculator is ( ).A. arithmetic and logic unitB. data busC. accumula