puters. Technological advances
mean a lot more power in the palm
of your hand.
Read on for a short course on cal-
culators and how to choose the one
that's right for you.
Just the facts...
Most calculators share common
I~features: a 10-key keyboard plus
decimal point; an eight-digit capacity
display with a floating decimal (the
decimal point moves to the correct
position in an answer) and automatic
rounding off of numbers; and a
memory feature that allows for
storage of subtotals.
Most calculators are battery-
powered. Some models can be
recharged; others require that the
batteries be replaced periodically
(usually yearly). Calculators display
answers on a light-emitting diode
the solar cells and to illuminate the
display screen (LCD). A popular
feature is an automatic switch-off;
the calculator turns itself off after
about five minutes of inactivity.
Calculators offering only a dis-
play do not provide that often-
essential hard copy, so you may
(LED) screen or a liquid crystal dis-
play (LCD). Solar- or light-pow-
ered models do not use batteries,
but require a light source to power
want to look into units with built-in
printers. Another useful develop-
ment is the talking calculator.
"These are especially useful for the
FALL 87/plus 15