W dniu 2012-02-16 15:14, Bill Fairchild pisze:
They haven't been device "addresses" since 1983 with the advent of MVS/XA, in spite of the fact
that people who had been calling them device addresses since 1964, for the most part, still call them device
addresses. They have been device "numbers" since XA's redesign of the I/O architecture. And
developers and documenters still create screen displays and tech doc with the now 31-years-obsolete
nomenclature. I complain now and then to deaf ears. But that's ok, since I still call z/OS by the name MVS.
At least I don't still call it "OS/VS2 Release 2." Lol
Yes, in z/OS (OS/390,...) there are device numbers, not adresses. Device
numbers replaced device addresses in some sense (like VARY command,
etc.). However people still use "device address" in place of device number.
We discussed about fifth byte of the device number, and nobody was
harmed by usage of "device address". Everyone knew what are we talking
about. IMHO that's the most important.
Similar "problems":
KiB vs kB (1024 vs 1000)
Unix System Services vs USS
--
Radoslaw Skorupka
Lodz, Poland
--
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