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LinuxInsider: IBM Adds Open-Source Agility to Transaction-Processing OS

“Users of Transaction Processing Facility (TPF), IBM’s mainframe
operating system, seem to have both pride in the OS and an
inferiority complex, often referring to it as ‘IBM’s unknown
operating system.’ Even IBM called it ‘little known’ in a press
release for its latest version of the system, zTPF.

“IBM in early October announced that it was taking a step toward
bringing zTPF to the attention of the next generation of IT
workers. With a planned release date of September 30, 2005, zTPF
adds features such as 64-bit addressing capability on zSeries
servers, but what is most significant is the system’s compatibility
with Linux. This feature opens the door for many more programmers
and administrators who may want to work with it.


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