This is the internship task 1 project provided by oasis infobyte in the web development. The task was to create the simple calculator which can perform operation like addition , multiplication, division, substraction. The development has to be done in the html , css and javascript.The task test the knowledege of the individual in the DOM , Event handling , if else statement in the javascript, also the fundamentals of css and htmlOverall , overall it was the nice experience to create the a basic calculator.