Make Calculator Using Notepad !!

In this post I am gonna show you another fun of notepad. Here I will show you how to make calculator using notepad. 

Copy and paste the following text in notepad. 

@echo off

title Batch Calculator by (www.munnamark.blogspot.com)

color 0c

:top

echo --------------------------------------

echo -Welcome to Batch Calculator by *(Marks PC Solution)!-

echo --------------------------------------

echo Enter your operand

echo.

set /p sum=

set /a ans=%sum%

echo.

echo = %ans%

echo --------------------------------------------------------------

pause

cls

echo Previous Answer: %ans%

goto top

pause

exit

Now save the file as Calculator.bat. Now double click on the file to open it. Type 2*2 and have fun!