IBM 1130 User Manual page 616

Section Subsections Page
80
30
I
20 02
As mentioned earlier, data
m~y
be-pl-aeed in
Working Storage (WS) if you do not intend to save it --
that is, if it is to be used for temporary storage
within one JOB. In fact, data will be written in WS
unless a *FILES card is used; likewise, any HEAD
commands will assume that the data is in WS if no
*FILES cards are present.
Using the *STOHEDATA and *FILES combination,
however, you have a choice as to where your data file
will be placed -- either in the User Area (UA) or
Fixed Area (FX). In most cases it does not matter
which is chosen, since both areas are safe from
accidental destruction. The main difference is
that files in the Fixed Area are in a fixed position
and will not be moved about as other files and pro-
grams are deleted.
This option is exercised by the characters
punched in columns 17 and 18 of the *STOHEDA TA
card -- UA indicating User Area, FX indicating
Fixed Area. Columns 13 and 14 always contain
WS, since the *STOHEDATA always takes some
number of sectors from WS and adds them to UA
or FX.
Note that there is no Fixed Area on a disk car-
tridge unless you have defined one with a *DEFINE
FIXED AREA card.