Calculators are used to calculate, or solve math problems to come up with solutions.Hope that helped!
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.
There are several good retirement or fidelity calculators available, some of these are offered by well known names and sites. Some of these would be: Boulevard R, CNN Fortune and Money, T. Rowe Price, Fidelity, Bloomberg, Yahoo Finance, Stock Point and Nationwide.
“Are there any online retirement or IRA calculators that are free for use?” are there any online retirement or IRA calculators that are free for use?
You can find online retirement calculators at moneycentral.msn.com/retire/planner.aspx and www.bloomberg.com/invest/calculators/retire.html. Fool.com and Vanguard offer free retirement calculators. These can help calculate how much you'll have at retirement.
I recommend http://www.money-zine.com/Calculators/Retirement-Calculators/CSRS-Retirement-Calculator/ as a brilliant calculator for working out your retirement amount.
Online retirement calculators are not always accurate but can give you a starting point. www.free-online-calculator-use.com/retirement-planning-ca. and www.money-zine.com/Calculators/Retirement-Calculators would both be able to give you an idea of where you are at in your retirement saving plan.
Online retirement calculators break down the numbers for you mathematically. Many high end banks and banking services use these calculators when calculating ones retirement plan. They are very trusted.
Retirement calculators can merely estimate your retirement budget based on your present amount of savings and retirement investments. They should take into account a comfortable lifestyle as well as unplanned emergencies that may arise.
Massmutual.com offers online retirement planning calculators.
websites will show up with free tools such as www.massmutual.com, www.ifa.com, money.msn.com, financialmentor.com/free-stuff/retirement-calculators, money-zine.com, and others.
401k calculators can be found on several websites which deal with retirement planning. Companies such as Bloomberg and organisations such as the AARP offer calculators on their websites.
Doughroller.net has a list of 11 Online Retirement Calculators, including CNNMoney's retirement planner.
Retirement calculators are a great tool to plan for your retirement. If you go to the MSNBC website they have a free retirement calculator that has all of the necessary tools.
People use retirement planning calculators at a pensionable age to determine if their pension will be enough to take care of them after retirement. It helps determine how much money they need to survive in addition to their pension.