IBM 3270 Operator's Manual page 116

112
Understanding the 3270
1
J
PROCESSING
r
Regardless of the information to be processed or the
equipment used, all data processing systems can be divided into
the three basic sections shown in Figure 45: INPUT, PRO-
CESSI NG, and OUTPUT. Each section performs one of the basic
functions that all data processing systems must accomplish.
INPUT
T
!
OUTPUT
Figure 45. All data processing systems have input,
processing, and output sections.