In <1891265032.6001250.1386631293335.javamail.r...@comcast.net>, on
12/09/2013
   at 11:21 PM, DASDBILL2 <dasdbi...@comcast.net> said:

>In general, hardware-oriented control blocks' mapping macros begin
>with IHA,

That came later. IHA was originally Supervisor.

>I must assume its mapping DSECT macro was named IKJTCB back in the
>1960s, pre-TSO

No. There was no IKJ prefix prior to TSO.
 
-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     ISO position; see <http://patriot.net/~shmuel/resume/brief.html> 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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