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工作学习 / IT杂谈 / Hi,Experts,Can you tell me what is "mission critical"? what is "real time system"?TIA
-deepyellow(DeepYellow);
2001-1-9
(#20964@0)
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Just some buzz wordsRoughly speaking, mission-critical means very very important, real-time system means "not a demo". You can see such words in flyers, ads, web sites... Hope you can use these words in your job interview.
-jabber(jabber);
2001-1-9
{205}
(#20967@0)
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Arguing about Real Time systems
-jfhuang(Zigzag);
2001-1-9
{818}
(#21009@0)
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agree!
-yfy_ca(yfy);
2001-1-9
(#21015@0)
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ZigZag, you are right! My posting was too casual.
-jabber(jabber);
2001-1-10
(#21098@0)
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Just one addendum: Java is not a real-time system.
-jabber(jabber);
2001-1-15
(#21725@0)
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Two of the most popular RealTime OS now are: pSos/pSos+, and VxWork.
They are widely uesd in Telecommunication System
-bills(Bill);
2001-1-15
(#21754@0)
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By the way, Windows NT 4.0 does not meet all the requirements of real time system.
-jabber(jabber);
2001-1-15
(#21761@0)
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Even UNIX is NOT real Real-time OS.
When we talk about Realtime OS, is always mean embaded-realTime OS, such as pSoS, vxWork.
-bills(Bill);
2001-1-15
(#21804@0)
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One more addendum, real time system is specified by POSIX 1003.1b.
-jabber(jabber);
2001-1-16
(#21876@0)
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I just wonder, how big the pSoS, vxWork. I think the embedded software couldn't too large. And is vxWork a Unix like system?
-rock_jack(Rock Jack);
2001-1-16
(#21885@0)
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Of course vxWORK and pSOS is very small as the most popupar
embaded OS in the world.
VxWork & pSOS are totally diffirect with Unix.
Now almost all telecommunication Equipment use pSOS/pSOS+
or vxWORK.
-bills(Bill);
2001-1-16
(#21887@0)
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Dear Jabber,real-time systems can run on a lot of OS, sometimes even don't need a OS.
-guest:Dolphin;
2001-1-16
{1253}
(#21889@0)
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Hi, bill,I have a question that in a real-time application, is progrmmer's duty to assign priority and schedule tasks at application level, or it could be taken care by RTOS.? thanks.
-rock_jack(Rock Jack);
2001-1-16
(#21966@0)
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Yeah. U should do it!
-bills(Bill);
2001-1-17
(#22048@0)
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For Your Reference
-guest:Dolphin;
2001-1-16
{715}
(#21873@0)
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Dolphin, thank you for your comments.
-jabber(jabber);
2001-1-16
(#21877@0)