We all are familiar with the windows calculator.It is an integral component of windows for all the versions.Till now you can only two types of the calculators i.e switching between "Standard" and "Scientific" . You might not expected new functions
when new versions were released. However under Windows 7, the computer additional views they are "programmer" and "Statistics" what's more you can also easily add use modules "Unit conversion"."Date calculation" and other work sheets such as "Mortgage" and "loan calculator"