Productive Time That Cannot Be Improved By Hardware Changes - IBM 1130 User Manual

Section
Subsections
Page
90 30
I
10 01
Productive Time That Cannot Be Improved by Hard-
ware Changes
Some of the 1130 system components are available
in only one model; therefore, it is impossible to in-
crease performance by changing them. The type-
writer, the console keyboard, the paper tape reader,
and the paper tape punch are four such devices.
In
addition, the reading/writing speed of the disk is
constant, which means that the reading/writing of
your data records cannot be speeded up through
hardware changes. However, because more disk
drives may be added, certain other times relative
to the disk (seeks, reading of overlays) may be re-
duced; they are therefore covered in a later section.