The following message is a courtesy copy of an article that has been posted to bit.listserv.ibm-main,alt.folkore.computers as well.
Howard Brazee <[EMAIL PROTECTED]> writes: > That makes sense. But continuing that thought, I see Apple, which > doesn't try to make its OS be all things for all people (and hardware > manufacturers). Even if it *is* UNIX. re: http://www.garlic.com/~lynn/2007i.html#25 Latest Principles of Operation apple os (and next before it) starts out with a MACH "microkernel" basis ... could be considered striving for KISS ... somewhat like the original CP67, as an extremely well focused microkernel. The morph from CP67 to VM370 included work by people with much more of traditional operating system training. Over the years, many found that the extreme simplicity of the kernel made it easy to change/add/modify on an adhoc basis. Unfortunately many such years of such adhoc approach to dealing with something that was suppose to be a microkernel (rather than operating system) ... eventually results in a lot of bloat and spaghetti code past reference to comment about simple can be frequently much harder than complex ... and it should be done with there is nothing left to remove ... as opposed to it being done when there is nothing left to add. http://www.garlic.com/~lynn/2007h.html#29 sizeof() was: The Perfect Computer - 36 bits? http://www.garlic.com/~lynn/2007h.html#30 sizeof() was: The Perfect Computer - 36 bits? http://www.garlic.com/~lynn/2007i.html#5 John W. Backus, 82, Fortran developer, dies more recently there have been comments about simple virtual machine microkernels may be solution to various significant security issues in the personal computing market place ... dynamically opening up a traditional operating system in a "padded cell" virtual machine when it needs to do various kinds of internet/network operations ... and then collapsing and discarding most of the environment when finished. lots of past posts referring to various microkernel activities: http://www.garlic.com/~lynn/94.html#54 How Do the Old Mainframes http://www.garlic.com/~lynn/95.html#0 pathlengths http://www.garlic.com/~lynn/2000e.html#42 IBM's Workplace OS (Was: .. Pink) http://www.garlic.com/~lynn/2001f.html#23 MERT Operating System & Microkernels http://www.garlic.com/~lynn/2001h.html#11 checking some myths. http://www.garlic.com/~lynn/2001j.html#36 Proper ISA lifespan? http://www.garlic.com/~lynn/2001k.html#45 SMP idea for the future http://www.garlic.com/~lynn/2001l.html#25 mainframe question http://www.garlic.com/~lynn/2001m.html#47 TSS/360 http://www.garlic.com/~lynn/2003.html#50 Origin of Kerberos http://www.garlic.com/~lynn/2003.html#60 MIDAS http://www.garlic.com/~lynn/2003h.html#37 Does PowerPC 970 has Tagged TLBs (Address Space Identifiers) http://www.garlic.com/~lynn/2003j.html#72 Microkernels are not "all or nothing". Re: Multics Concepts For http://www.garlic.com/~lynn/2003k.html#5 What is timesharing, anyway? http://www.garlic.com/~lynn/2003k.html#9 What is timesharing, anyway? http://www.garlic.com/~lynn/2003k.html#24 Microkernels are not "all or nothing". Re: Multics Concepts For http://www.garlic.com/~lynn/2003k.html#26 Microkernels are not "all or nothing". Re: Multics Concepts For http://www.garlic.com/~lynn/2003k.html#27 Microkernels are not "all or nothing". Re: Multics Concepts For http://www.garlic.com/~lynn/2003k.html#28 Microkernels are not "all or nothing". Re: Multics Concepts For http://www.garlic.com/~lynn/2003k.html#30 IBM channels, was Re: Microkernels are not "all or nothing" http://www.garlic.com/~lynn/2003k.html#37 Microkernels are not "all or nothing". Re: Multics Concepts For http://www.garlic.com/~lynn/2005b.html#22 The Mac is like a modern day Betamax http://www.garlic.com/~lynn/2005c.html#44 [Lit.] Buffer overruns http://www.garlic.com/~lynn/2005c.html#56 intel's Vanderpool and virtualization in general http://www.garlic.com/~lynn/2005c.html#63 intel's Vanderpool and virtualization in general http://www.garlic.com/~lynn/2005f.html#10 Where should the type information be: in tags and descriptors http://www.garlic.com/~lynn/2006p.html#10 What part of z/OS is the OS? http://www.garlic.com/~lynn/2006p.html#11 What part of z/OS is the OS? http://www.garlic.com/~lynn/2007g.html#70 The Perfect Computer - 36 bits? http://www.garlic.com/~lynn/2007g.html#83 IBM to the PCM market ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
