IBM 1130 User Manual page 473

Section
Subsections Page
60
10
I
50
01
Fixed Area (FX)
The Fixed Area, like the User Area, is a place
where the user may store programs and/or data
files. There are five major differences between
tne FX and the UA:
1. There is no Fixed Area on a cartridge unless
you specifically define one (see 60.30.20).
2. You specify the size of the FX, whereas the
UA expands and contracts as items are added to or
deleted from it.
3. Like the UA, the FX may contain both pro-
grams and data, but the programs must be in disk
core image (DCI) format. They cannot be in disk
system format (DSF).
4. Programs or data files stored in the FX may
be deleted, but the FX will not be repacked, as is
the case with the UA. Once an item is stored some-
where in the FX, it stays in the same location until
it
is deleted.
5. The directory of the FX is FLET, the Fixed
Location Equivalence Table, rather than LET, which
is the directory to the UA.