Post by thread:[OT]: Brain Levels

Bob Ammerman wrote: ......... >I often consider the uC the lower level that gives me the guarantee. Of >course, that is when the upper level is a box running Windoze! ;-) > human brain mouse brain worm brain Linux Windoze uC logic transistor ckts resistors/fuses So you see, Bob, the uC is about median level of guarantee. [of course, some would put Windose at the bottom]. -- http://www.piclist.com hint: To leave the PICList spam_OUTpiclist-unsubscribe-requestTakeThisOuTmitvma.mit.edu

>human brain >mouse brain >worm brain >Linux >Windoze >uC >logic >transistor ckts >resistors/fuses ... many other things entropy The End. Peter PS: There is a reliability rating study done a long time ago by/for the US Army ? It has a mil-std I forget. It lists parts in the order of reliability. Because of the amount of testing they undergo chips are among the most reliable parts in a circuit. Complex circuits done with reliable parts start to have connection reliability problems soon. Apparently a consumer TV mainboard of medium complexity is at about the limit where you can't have a board roll of the production line without a human having to touch this and that. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

Peter.P wrote: >>human brain >>mouse brain >>worm brain >>Linux >>Windoze >>uC >>logic >>transistor ckts >>resistors/fuses >... many other things >entropy >The End. > "The End" ????????????? ============= >PS: There is a reliability rating study done a long time ago by/for the US >Army ? It has a mil-std I forget. It lists parts in the order of >reliability. > >Because of the amount of testing they undergo chips are among the most >reliable parts in a circuit. ...... By chips, I imagine they meant discrete, and not microcontrollers/etc, executing code. Yes/no/maybe/sometimes ????????? -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

>Because of the amount of testing they undergo chips are among the most >reliable parts in a circuit. Complex circuits done with reliable parts >start to have connection reliability problems soon. Apparently a consumer >TV mainboard of medium complexity is at about the limit where you can't >have a board roll of the production line without a human having to touch >this and that. Being involved in the space industry, it is quite evident when doing reliability analysis, that one of the most unreliable parts of an electronic circuit is the solder joints. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics

> >... many other things > >entropy > >The End. > > > > "The End" ????????????? > ============= Do you know anything more reliable (and brain-dead) than entropy and then end ? Peter > >Because of the amount of testing they undergo chips are among the most > >reliable parts in a circuit. > ...... > > By chips, I imagine they meant discrete, and not microcontrollers/etc, > executing code. Yes/no/maybe/sometimes ????????? That study was old enough not to contain data on programmable chips. Micros are just chips. The mistakes (beyond any silicon errata) depend on the programmers. Peter -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.