[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f0m24HCc7KynatsvcBNm5qUJWgVyC-deJ15r3JtdiYwY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":20,"type":21},[],"2024-12-22 16:28:15",173039618,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},6,"331325852c91d9e073e84605aff13c00","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0d27132e8e4c25614916fe2373258c2e.jpg","操作系统Ⅱ","work_38520682","第四章设备管理","简述设备管理的基本功能",[17,22,27,32,37,42],{"answer":18,"createTime":5,"id":6,"options":19,"question":15,"source":20,"type":21},[],[],"v1",4,{"answer":23,"createTime":5,"id":24,"options":25,"question":26,"source":20,"type":21},[],173039619,[],"I\u002FO控制方式有哪些",{"answer":28,"createTime":5,"id":29,"options":30,"question":31,"source":20,"type":21},[],173039620,[],"为什么要引入缓冲技术?基本思想是什么",{"answer":33,"createTime":5,"id":34,"options":35,"question":36,"source":20,"type":21},[],173039621,[],"SPOOLing系统是如何将独占型设备改造成共享型设备的",{"answer":38,"createTime":5,"id":39,"options":40,"question":41,"source":20,"type":21},[],173039622,[],"磁盘共有200个柱面,每个柱面有20个磁道,每个磁道有8个扇区,每个扇区为1024B.假设柱面号、磁道号与扇区号均从0开始编号,如果驱动程序所接到的访问请求是读出第606块,计算此信息块的物理位置",{"answer":43,"createTime":5,"id":44,"options":45,"question":46,"source":20,"type":21},[],173039623,[],"一个软盘有40个柱面,查找过程中每移过一个柱面需花费6ms.若文件信息块凌乱地存放,则相邻逻辑块平均间隔13个柱面.但若优化存放,相邻逻辑块平均间隔2个柱面.如果搜索延迟为100ms,传输速度为每块25ms,试问在以上两种情况下传输长度为100块的文件各需多长时间"]