Monroe 8125 User Manual page 138

FUNCTIONAL
ATTRIBUTES
Separate Adding Machine/Calculator
Earlier in our discussion, we touched upon
the basis and importance of having the adding
machine controls on the right. Similarly it is
important to have the calculator controls on the
physically between the adding machine and
calculator again pertains to the intended
use of the calculator, i.e. most of the work
performed on the calculator will be addition
and subtraction. It is also extremely important
that separation exist functionally. Certain
perform any other operation (multiplication and
division for example). Inadvertent depression
of the times or divide keys could clear the
contents of the adding machine, thereby
Repeat Addition and Subtraction
This feature is standard on most calculators. It
permits a user to press the plus key again (for
example) to add the same number more than
once. It also permits a user to touch the minus
key following a depression of the plus key to
correct an entry error. This feature eliminates
the need to reenter like amounts when they
follow each other in addition and subtraction.
Add Mode
Add mode is typically denoted on the decimal
selectors of calculators as a + symbol or with
an A. In Add mode, the user need not press the
decimal point key when entering dollars and
138
cents. The calculator will place the decimal
point automatically, i.e., if one were to enter
1, 2, 3, then press the plus key, the calculator
would accept the entry as $1.23. The feature
and was based upon the fact that mechanical
adding machines did not have decimal point
keys, therefore entries were accepted as
dollars and cents. Add Mode on the 8125 goes
addition and subtraction. Since these products
are no longer simply adding machines, what
happens when one performs multiplication or
division when the decimal selector is in Add
Mode (+) position.
performed on a calculator is checking an
invoice. Invoices typically are formatted
in much the same way. That is, one is
multiplying the number of units by a price in
dollars and cents. If the decimal selector is
in Add Mode, and one enters 12 touches the
calculator will automatically treat the entry of
12 as whole units and treat the second entry
123 as $1.23. This treatment is referred to as
units price mode.
Monroe 8125 provides the default position
with the other formats optional when the
decimal selector is in the Add Mode position
and one is performing multiplication or
entries in multiplication or division as whole
numbers, if no decimal point is entered.
As much as one wants to generalize, there
the number of units. To facilitate this type