Silicon based semiconductors are the most commonly used semiconductor material in calculators. Silicon semiconductors are also extensively used in computers.
They used the abacus
Mercury is a heavy metal that is very toxic and is a liquid at room temperature. For this reason I do not believe that there would be any mercury in calculators. I do not know why mercury would be used in manufacturing. I don't believe is is commonly used in computer chips. Whether or not mercury is actually used in calculators or in manufacturing of calculators depends varies by manufacturer.
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Calculators are used to solve maths problems quickly and reliably
Annuity calculators are used to calculate the returns on investments made in annuities.
scientific calculators
GPA calculators are used for College students to keep track of their Grade Point Average.
Yes, magnets are commonly used in calculators to help hold batteries in place or to secure the calculator cover. Magnets can also be used in certain types of stylus pens for touchscreen calculators.
well it is used for calculating numbers and would be useful but usually calculators are not used during exams as it is a basic rule for not using them !
I recommend http://banking.about.com/library/calculators/bl_LoanAmortizationCalculator.htm as an excellent website for amortization calculators that can be used in Microsoft excel
There are calculators with sound and volume adjustment. These calculators are used by medical doctors and scientists. They are not available for the general public to purchase.
Silicon based semiconductors are the most commonly used semiconductor material in calculators. Silicon semiconductors are also extensively used in computers.
They used the abacus
Well, Solar calculators are used to your powered by "solar energy". Which means the SUN!
Mercury is a heavy metal that is very toxic and is a liquid at room temperature. For this reason I do not believe that there would be any mercury in calculators. I do not know why mercury would be used in manufacturing. I don't believe is is commonly used in computer chips. Whether or not mercury is actually used in calculators or in manufacturing of calculators depends varies by manufacturer.
Online loan calculators are everywhere. Some of the most popular online loan calculators are located on the websites: Bankrate, myFICO, and FinAid. These loan calculators are all popular and widely used.