Question Need some Help about it

Beautiful FairyBeautiful Fairy Registered Users Posts: 1 ■□□□□□□□□□
Hey I have a question plz somebody help me to solve it

Assume

that three I/O devices are connected to a16-bit, 100 MIPS CPU. The first device is a hard drive with a maximum transferrate of 2MB/sec. It has a half word (16-bit) bus. The second device is a floppydrive with a transfer rate of 10KB/sec over 8-bit bus, and the third device isa keyboard that must be polled 25 times per second. Assuming that the pollingoperation requires 40 instructions for each I/O device, determine the percentageof CPU time required to poll each device and also state what you infer aftercalculating these percentages

How would we do it plz elaberate a bit

thanks in advance

Comments

  • georgemcgeorgemc Member Posts: 429
    Why don't you read your book and at least attempt to do your own homework?
    WGU BS: Business - Information Technology Management
    Start Date: 01 October 2012
    QFT1,PFIT in progress.
    TRANSFERRED/COMPLETED: AGC1,BBC1,LAE1,QBT1,LUT1,QLC1,QMC1,QLT1,IWC1,INC1,INT1,BVC1,CLC1,MGC1, CWV1 BNC1, LIT1,LWC1,QAT1,WFV1,EST1,EGC1,EGT1,IWT1,MKC1,MKT1,RWT1,FNT1,FNC1, BDC1,TPV1 REQUIRED:
  • AhriakinAhriakin SupremeNetworkOverlord Member Posts: 1,799 ■■■■■■■■□□
    While it could have been a wee but more polite george has a point. At least try to show that you have attempted working something like this out and ask for verification etc. That would get a much better response.

    Locking.
    We responded to the Year 2000 issue with "Y2K" solutions...isn't this the kind of thinking that got us into trouble in the first place?
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