【简答题】【消耗次数:1】
指令周期、机器周期与时钟周期的关系。
参考答案:
复制
纠错
相关题目
【单选题】 指令周期和总线周期的长短排序,正确的是()
①  总线周期≥指令周期≥时钟周期
②  时钟周期≥指令周期≥总线周期
③  指令周期≥总线周期≥时钟周期
④  时钟周期≥总线周期≥指令周期
【单选题】 在控制器的控制方式中,机器周期内的时钟周期个数可以不相同,这属于______。
①  同步控制
②  异步控制
③  联合控制
④  人工控制
【多选题】 指令周期不是指_____。
①  CPU从主存取出一条指令的时间
②  CPU执行一条指令的时间
③  CPU从主存取出一条指令加上执行这条指令的时间
④  时钟周期时间
【单选题】 指令周期是指________
①  CPU从主存取出一条指令的时间
②  CPU执行一条指令的时间
③  CPU从主存取出一条指令加上执行这条指令的时间
④  时钟周期时间
【单选题】 指令周期是()
①  CPU 执行一条指令的时间
②  CPU 从主存中读取一条指令的时间
③  CPU 分析一条指令的时间
④  CPU 从主存中读取一条指令并分析、执行这条指令的时间
【单选题】 MCS—51的每个机器周期包含状态周期数为(????)
①  12
②  24
③  10
④  6
【单选题】 一个机器周期相当于____。
①  2个指令周期
②  12个振荡周期
③  4个状态周期
④  24个振荡周期
【单选题】 指令周期指的是什么?
①  从主存储器读取一条指令的时间
②  执行一条指令的时间
③  从主存中读取一条指令到指令执行结束的时间
④  主频脉冲时间
【判断题】 PLC中的空操作指令NOP不影响机器的扫描周期。
①  正确
②  错误
【单选题】 正确的题目应该是一个机器周期等于(  )振荡周期
①  1个
②  2个
③  12个
④  6
随机题目
【单选题】 A: This is Mr. Bill and this is Mr. Paul. B: [填空]
①  How do you do?
②  How are you?
③  Fine,thank you.
④  Hi,how are you getting on?
【单选题】 A: How much is that rice, please? B: [填空].
①  Four Kilo
②  Very much
③  Four are enough
④  Four yuan a kilo
【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/0418BF1D02417B92F76B614E1597FD00.png title=5.png alt=5.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/27CC83C93F9DEC1027C40DB516AEFFFE.png title=5-1.png alt=5-1.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/A52D2423E20F7AF67CDED3927DFBC6E8.png title=5-2.png alt=5-2.png/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/1CF3AA81CC78B903E42266CDBA6690AC.png title=5-3.png alt=5-3.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/286CB235C4A75DA8DDB21CABF734CF53.png title=5-4.png alt=5-4.png/>
【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/50B8AB3880EC4FD1901EE390ABF55B59.png title=2.png alt=2.png/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/5758B772498446FA82AC77D6D7F305E8.png title=2-1.png alt=2-1.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/B6454D5F78F647A4D82E69A2B2819675.png title=2-2.png alt=2-2.png/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/752DB2A405FFF9EE7DA06D85FB42F136.png title=2-3.png alt=2-3.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/CEF05144723A27B982B70DE56A618B07.png title=2-4.png alt=2-4.png/>
【单选题】 菜单控件只有一个事件( )。
①  MouseUp
②  Click
③  DbClick
④  KeyPress
【单选题】 语句Dim t(6,-3 to 5)As Integer定义的数组元素有( )个。
①  45
②  54
③  40
④  63
【单选题】 语句Dim t(-2 to 6)As Integer定义的数组元素有( )个。
①  6
②  7
③  8
④  9
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Robert had just moved into the street and he felt strange that he was not wanted. He knew that perhaps the other boys were trying to get an idea of what kind of a boy he was. This did not help him to make himself less lonely. He was new and he had to be tested. Still, proving himself would not be all that easy. He did not want to run with the boys or get into something against the law to prove that he was strong. No! He must show what he was made of in a more helpful way. That’s when he got the idea.The next day was Saturday. He knew that most of the boys would be down on the playground and choose up sides for the Saturday game. Robert knew he could play well and that just might be enough to prove he was strong, and to make friends with them. He arrived early and did his step exercises. He shot the ball several times and did some other exercises—the most difficult and most wonderful in basketball. Then the boys came. Robert went through what he had done before the game and showed what he could do. No one said a word. The boys just looked at each other and thought about it. In the end, when it was all over, the biggest of the group just smiled and shook his head. Robert knew he had made it.4. What did the biggest of the group mean by shaking his head?
①  He did not want to say anything about what Robert had done.B. He had not thought Robert could play so wonderfully.C. He did not want to make friends with Robert.D. He did not think Robert played basketball well.
②  He had not thought Robert could play so wonderfully.
③  He did not want to make friends with Robert..
④  He did not think Robert played basketball well.
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Robert had just moved into the street and he felt strange that he was not wanted. He knew that perhaps the other boys were trying to get an idea of what kind of a boy he was. This did not help him to make himself less lonely. He was new and he had to be tested. Still, proving himself would not be all that easy. He did not want to run with the boys or get into something against the law to prove that he was strong. No! He must show what he was made of in a more helpful way. That’s when he got the idea.The next day was Saturday. He knew that most of the boys would be down on the playground and choose up sides for the Saturday game. Robert knew he could play well and that just might be enough to prove he was strong, and to make friends with them. He arrived early and did his step exercises. He shot the ball several times and did some other exercises—the most difficult and most wonderful in basketball. Then the boys came. Robert went through what he had done before the game and showed what he could do. No one said a word. The boys just looked at each other and thought about it. In the end, when it was all over, the biggest of the group just smiled and shook his head. Robert knew he had made it.2. Why would it not be easy for Robert to prove himself?
①  Because he was not sure if he was really strong.
②  Because he was new and was not wanted in the street.
③  Because the other boys had found out what kind of a boy he was.
④  Because he must choose the best way to prove himself.
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Robert had just moved into the street and he felt strange that he was not wanted. He knew that perhaps the other boys were trying to get an idea of what kind of a boy he was. This did not help him to make himself less lonely. He was new and he had to be tested. Still, proving himself would not be all that easy. He did not want to run with the boys or get into something against the law to prove that he was strong. No! He must show what he was made of in a more helpful way. That’s when he got the idea.The next day was Saturday. He knew that most of the boys would be down on the playground and choose up sides for the Saturday game. Robert knew he could play well and that just might be enough to prove he was strong, and to make friends with them. He arrived early and did his step exercises. He shot the ball several times and did some other exercises—the most difficult and most wonderful in basketball. Then the boys came. Robert went through what he had done before the game and showed what he could do. No one said a word. The boys just looked at each other and thought about it. In the end, when it was all over, the biggest of the group just smiled and shook his head. Robert knew he had made it.1.What does “This did not help to make him less lonely” mean?
①  Robert felt more lonely because the other boys wanted to test him.
②  Robert did not want himself to be less lonely.
③  Robert felt as lonely as before when the other boys tried to find out what kind of a boy he was.
④  The other boys did not want to make Robert feel less lonely.