求教各位老大!!!

救命啊,下星期要考试,晚上要打工, 作业都没法做了.请教各路高人,以下这题怎么做啊??

If program A has a total of run time of 40ms and IO time of 100ms,
If program B has a total of run time of 60ms and IO time of 20ms,
If program C has a total of run time of 30ms and IO time of 700ms,

there is only one IO device, and one CPU, what is the minimum total time to run these three programs?(show your steps)
The question is about Concurrency.

跪谢各位了!!!

所有跟帖: 

应该是850ms吧,如果俺没理解错出题人的意图的话。 -^@^,,)~- 给 ^@^,,)~ 发送悄悄话 (1887 bytes) () 02/14/2004 postreply 14:55:57

谢谢大虾指点!但还有一个问题 -UsIsAshit!- 给 UsIsAshit! 发送悄悄话 (40 bytes) () 02/15/2004 postreply 02:29:47

请您先登陆,再发跟帖!