计算机组织与结构 COA考试习题 (11)
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Chapter 3Homework
1.PC means _________.
A. personal computer
B. programming controller
C. program counter
D. portable computer
2. PC holds _______________ .
A. address of next instruction
B. next instruction
C. address of operand
D. operand
3. At the end of fetch cycle, MAR holds _____.
A. address of instruction
B. instruction
C. address of operand
D. operand
4. Interrupt process steps are __________.
A. suspending , resuming , branching & processing
B. branching , suspending , processing & resuming
C. suspending , branching , processing & resuming
D. processing , branching , resuming & suspending
5. A unsigned binary number is n bits, so it is can represent a value in the range between _________ .
A. 0 to n-1
B. 1 to n
C. 0 to 2n-1
D. 1 to 2n
6. The length of address is 32 bits, so addressing range (or the range of address) is ________________.
A. 4G
B. from –2G to 2G
C.4G-1
D. from 1 to 4G
7. There are three kinds of BUS. Which does not belong to them?
A. address bus
B. system bus
C. data bus
D. control bus
8. In the simplest instruction processing form, it consists of two cycles: _____________.
A. fetch and indirect
B. fetch and execute
C. indirect and execute
D. fetch and interrupt
9. The control lines are used to control the access to and the use of the data and address lines. Typical control signals include the following: _____________.
A. read and write
B. interrupt request and acknowledge signal
C. clock
D. A, B and C
10. At the end of fetch cycle, IR holds .
A instruction
B operand
C address of operand
D address of instruction
11. ____________register holds address of next instruction ?
A. MAR
B. MBR
C. PC
D. IR
12. An unsigned binary integer is ________ bits, so it can represent an integer between 0~4G-1.
A. 64
B. 32
C. 16
D. 8
13.There are three levels of BUSes in modern computer system. ________ is not belong to them?
A. expansion bus
B. system bus
C. data bus
D. high-speed bus
Questions
1.Translate the following terms (Note: function)
PC, MAR, MBR, IR, AC, bus, system bus, data bus , address bus , control bus , handler*, opcode, Bus arbitrate* , multiplexed bus* , interrupt, ISR, Instruction cycle , fetch cycle , execute cycle (带“*”为选做题)
2.Page90 problems
3.1
3. Describe simply the operations of PC and IR in an instruction cycle.
4.Suppose the length of word is n-bit, describe simply operand(操作数) format and instruction format.
5. Describe simply the procedure of the interruption
6. Describe simply the types and functions of the BUS.