【简答题】某 磁盘 存储器共有4个盘片组成,每盘有两个记录面,其中最上、最下两面不记录数据,盘片每毫米4个磁道,最小磁道直径为50mm,每面有100个磁道,每道记录信息为10000B,转速为3000转/分,问: (1) 磁盘存储器的存储容量是多少MB? (2) 最大位密度是多少bit/mm? (3) 磁盘数据传输率是多少MB/s?
【简答题】用适当的介词填空。 1. He climbed up to the top of a large rock, ______ where he got a good view. 2. The painting ______ which I looked was painted by Vincent Van Gogh. 3. The pen ______ which she wrote that bo...
【单选题】已知一个盘组有3个盘片,共有4个数据记录面,每面的内磁道直径为10cm,外磁道直径为30cm,最大位密度为250位/毫米,道密度为8道/毫米,每磁道分成16个扇区,每个扇区存储512B,磁盘转速为7200转/分。则该磁盘非格式化容量为(15),格式化容量为(16),数据传输率约为(17)。 (57)
【简答题】任务型阅读 阅读短文,按要求完成各题 (5分) Sir Run Run Shaw, one of the pioneers (先锋)of the 20th century Chinese film industry, passed away at his home in Hong Kong at the age of 107. Shaw was born in Ningbo, Zhejiang, ...
【单选题】由事物或活动本身引起的兴趣叫( )兴趣。
【单选题】Advance Notice of TV program April 25th, 2009 (Sunday) Central Television Station Channel 3 8: 30 Follow Me (55) 9: 00 Learning Pinyin (34) 9: 30 For Children: 1. Who is the prettiest? 2. The Hat 3. A...
【简答题】某磁盘组有6片磁盘,每片可有2个记录面,存储区域内径为22cm,外径为33cm,道密度40道/cm,位密度400b/cm,转速2400 r/min。试问: (1)共有多少个存储面可用? (2)共有多少个圆柱面? (3)整个磁盘组的总存储总量有多少? (4)数据传送率是多少? (5)如果某文件长度超过一个磁盘的容量,应将它记录在同一存储面上还是记录在同一圆柱面上?为什么? (6)如果采用定长信...