Example 2 - IBM 1130 User Manual

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Example 2.
A payroll and project cost accounting system in-
volves four disk data files:
EMPS - 300 employee records with 60 words
per record.
PROJ - 100 project records with 20 words
per record.
DDESC - 20 records of 18 words each, con-
taining some alphabetic information
for each of 20 departments.
SUBT - 20 records of 60 words each, con-
taining an array of subtotals of
department worked for vs department
charged to. This is a temporary
file used only as an extension of
core storage, not saved from job to
job.
Assume you have only one disk drive and don't
care which disk cartridge is mounted. (You really
do, but you, rather than the Monitor, will make
sure the correct disk is being used. )
With this basic data, you can fill in the Disk File
Layout Worksheets and punch the necessary cards.
Note that file 9 (SUBT) does not need a *FILES OR
*STOREDATA card, since it is not to be saved
from one job to another. It does require a DEFINE
FILE card.