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Welcome to the HP-20S
Your HP-20S is another example of the superior quality and attention
to detail in engineering and manufacturing that have marked
Hewlett-Packard products for more than 40 years. Hewlett-Packard
stands behind this calculator. We offer worldwide service and exper-
tise to support its use.
Hewlett-Packard Quality
Our calculators are made to excel, to last, and to be easy to use.
B This calculator is designed to withstand the drops, vibrations, pol-
lutants (smog, ozone), temperature extremes, and humidity
variations that it can be exposed to in everyday worklife.
B The calculator and its manual have been designed and tested for
ease of use. We added examples to the manual to highlight the var-
ied uses of this calculator.
B Advanced materials and permanent, molded-in key lettering pro-
vide a long keyboard life and a positive feel to the keyboard.
B CMOS (low-power) electronics and the liquid-crystal display allow
data to be retained even when the calculator is off and let the bat-
teries last a long time.
® The microprocessor has been optimized for fast and reliable com-
putations using 15 digits internally for precise results.
B Extensive research has created a design that has minimized the ad-
verse effects of static electricity (a potential cause of malfunctions
and data loss in calculators).
Welcome to the HP-20S
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