CHƯƠNG 2 THIẾT KẾ HỆ THỐNG ĐIỀU KHIỂN GIÁM SÁT CHO HỆ THỐNG CUNG CẤP NƯỚC SINH HOẠT
Chương 1. Hệ Điều Hành
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Transcript of Chương 1. Hệ Điều Hành
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7/23/2019 Chng 1. H iu Hnh
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TrngihcXyDngKhoa CngnghThngtin
PhmHuThnh
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CcvntrnhbyKhinimHH
Lchsphttrin
PhnloiHHCctnhchtcbncaHH
CcchcnngcaHH
CcthnhphncaHH
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KhinimhiuhnhMththngmytnh
chia lm4 lp
PhncngHiuhnh
Ccchngtrnhngdng
Ngisdng
Database
User n
compiler Text Editor Program language
Application programs
Operating Systems
Hardware
User 1 User 2 User 3 ..
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7/23/2019 Chng 1. H iu Hnh
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Khinimhiuhnh Xtvphangisdng: HH tomitrnggiao dingia
ngidngvmytnh, chophpngidngara chthhotngiukhinhthng.
Xtvphatrnhngdng: HH tomitrngcho ccchngtrnhhotng. Cung cpcchkchhotvloibcctrnhngdng
Xtvphaphncng: HH qunlccthitb1 cchchiuqu,khai thchtcckhnngcathitb, cung cpcho ccchng
trnhvngisdngtinguynphncngkhi cyucu. HH lmttphpccchngtrnhhthngcchcnngtomitrnggiao dincho ngisdng, tomitrnghotngchocctrnhngdng, qunlvkhai thchiuquccthitbphncng.
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7/23/2019 Chng 1. H iu Hnh
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Lchsphttrin (b sung)LchsphttrinHH gnlinvilchsphttrinca
mytnhs.
4 thhmytnhs:Thhth1
Thhth2
Thhth3
Thhth4
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Phnloi HH nnhim: Mithiimchiuhnh1 hotngcachng
trnh.
HH anhim: Chophpthchinnhiuchngtrnhtimtthiim.
HH nchng: Timithiimchchophpmtngisdnglmvic
HH achng: Chophpnhiungisdngcngthiim
HH chiasthigian: MtCPU lunphcvcctintrnhvmtchngtrnhcthrivotrngthichikhi chacphnbCPU.
HH thigian thc: Tintrnhnpvohthngtibtk1 thiimnocngcphnbgiCPU.
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7/23/2019 Chng 1. H iu Hnh
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TnhchtcaHH Tnh tin cy: Mi hot ng, thng bo ca HH phi chun
xc tuyt i.
Tnh an ton: HH phi m bo cho d liu cc chng trnhkhng thay i ngoi mun trong mi trng hp v mi ch hot ng. Cung cp cc c ch bo v d liu v tinguyn dng chung.
Tnh hiu qu: Ti nguyn my tnh l c hn do HH phi
s dng ti nguyn mt cch trit gii quyt c ccyu cu phc tp ca chng trnh
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7/23/2019 Chng 1. H iu Hnh
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TnhchtcaHH Tnhktha: Kthaccuim, khcphcnhcimca
ccHH trcvkhnngthchnghi viccthay itrong tnglai..
Tnhthunli: HH phisdngddng, chiuqutytheo kinthc, kinh nghimngidng. Chthnghtr
phongphyngisdngcthtotomnhngay trong qutrnhsdng.
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7/23/2019 Chng 1. H iu Hnh
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ChcnngQunltintrnh
To, xatintrnhra khihthng. Tocccchlinlc,ngbgiacctintrnh, cccchxlbtc.
mbocchhotngsong song giacctintrnh
Qunlbnh
Qunlbnhtrong
Qunlbnhngoi
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7/23/2019 Chng 1. H iu Hnh
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ChcnngQunlhthngvora
Che ducthcacchthngvo/ra
Tochngtrnhqunliukhinthitbchung vccthitbcbit
QunlfileTo, xafile, thmc
Htrccthao tcxlfile, thmcnhxfile lnbnhph
Ghi dphngccfile lnbnhph
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ChcnngHthngbov
Bovtinguyncahthng,phttrinngnchnsai stcacctintrnh
LpmngHtrkhnngqunl, chia stinguynmngthngqua
ccthnhphniukhingiao tipmng.
ThngdchlnhLthnhphnquan trngnhtcahiuhnh
Gipmytnhhiuvxlccchth, lnhcangidng.
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7/23/2019 Chng 1. H iu Hnh
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CcthnhphncaHHCcphcvcahiuhnh
Phcvthchinchngtrnh
iukhinthao tcvoraCcthao tcfile
Phthinlisai st
Phnphitinguyn
Thngk, ktonTchcccphcv
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7/23/2019 Chng 1. H iu Hnh
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CcthnhphncaHH System call
Cung cpgiao dingiachngtrnhanghotngvhiuhnh.
HH cung cp2phngphptchcthchinccgihthng: Tchcbnglnhhpng
Tchctrctiptchngtrnhngnngbccaobngcchs
dngchngtrnhcon.
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7/23/2019 Chng 1. H iu Hnh
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CcthnhphncaHHChngtrnhhthng
Cung cpcngccho ngisdngthchinccthao tcqunlviukhinhthngnh: - Ccchngtrnhthao tcvifile vthmc
- Ccchngtrnhthngtin trngthi
- Ccchngtrnhhtrngnnglptrnh
- Ccchngtrnhiukhinnpvthchinchngtrnh
- Chngtrnhgiithchlnh
Ccchngtrnhngdng
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CcthnhphncaHHCcchngtrnhngdng
Ccchngtrnhngdngikmtheo HH vimcchhtrcho ngisdngthchinccthao tcngdngcbnnhccchngtrnhsonthovnbn, trnhduytweb, games,