OS Calculator
Cause our work is mostly on the computer, usually we use the calculator application program installed in the Windows or Mac OS X operation system instead of the real calculator. However a designer at Mintpass has showed off a cool calculator named OS Calculator that looks exactly like the calculator apps in above OS.
The Mac version has a metal case and a 2-liner LCD screen its software counterpart, and the Windows version features the classic XP color schem, menu headers and window buttons (maximize, minimize, close). So cool!
Via technabob
