If you start with a quick search on the internet, you can find this Wikipedia entry
http://en.wikipedia.org/wiki/Transaction_Processing_Facility No LPAR but IPARS for TPF TPF implements an application known as PARS. Many airlines use this passenger reservation application or its international version IPARS TPF is an IBM real-time operating system for mainframes descended from the IBM System/360 family, including zSeries and System z9. The name is an initialism for Transaction Processing Facility. TPF was based OS360 Assembler. But what is your true question? I do not know of a newsgroup specific to zTPF or TPF, so there might not be a good place to ask questions. I worked for a company that used TPF. My very basic understanding is that the application and operation system code is linked altogether. So it is possible for a problem in the application side of the code impacting the running of the zTPF Operating System. If you could provide some more direct questions, we might be able to help. But start with Wikipedia. It is a decent article. Lizette > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf > Of Mike Schwab > Sent: Wednesday, October 17, 2012 9:42 PM > To: [email protected] > Subject: Re: Pars Ipars TPF and APC > > LPAR (Logical Partition) = 1 region of mainframe memory assigned to an operating > system. The host is microcode in the mainframe. LPARs is the plural. It was released > in the 1990s as an outgrowth of VM/ESA. > > z/TPF (Transaction Processing Facility) is a very high speed operating system that > spreads files across many disk volumes. Originally called APF (Airline Processing > Facility). The actual compiles are done under z/OS then the object modules are > transferred. > > IBM wrote the operating system and compilers for software but the individual > companies wrote the appliction software customized for each company. Yes, errors > creep into the software, but the individual sites have to verify everything works before > using their final software for production (handling sales). > > Most mainframe software is closed source, vendor written and supported. The > CBTTAPE site is where most mainframe open source programs are shared. But these > are just utility programs that assist the operating systems. > > Without know what the bug is (I. E. Royal Bank of Scotland several day > outage) it is very hard to assign blame. > > On Wed, Oct 17, 2012 at 8:46 PM, T Gold <[email protected]> wrote: > > Now that I got your attention. > > > > I came here to find anyone in public or private that wants to talk > > about pars, ipars, tpf and or apc or all of the above. > > > > Long story about how I was sucked into this issue, but recent legal > > battles concerning the GDSs lead me to dig into more concerning the > > actual systems the GDSs, CRSs and the modules the airline industry uses. > > > > In short it mostly seems to "be IBM". Recent statements by the major > > GDSs are that their problems are "IBM's fault". I've love to see IBM > > follow that up with a statement in the manner of "Stop using our code > > or be subject to legal penalties". > > > > Is Pars or Ipars an actual operating system? > > > > Is it open or closed? > > > > I read that IBM did do a lot of support for the airlines. But how > > much control or oversight did they or do they have over the use of > > their code in these modules? I guess I have too many questions and > > not enouch answers yet so i'll end there. The issue of what exactly > > are they coding in and is it an OS or a protocol and if it is open or closed source. > > > > Turiyan ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
