Desktop Calculator

This is no-full functional desktop calculator that I created in Human-Computer Interaction course. Thus, our lecturer just required us to design desktop calculator that will increase interaction between human and computer.

I don't how about other group design concept, but more focus on GRID when design. For my opinion, grid is will increase the ability for user to position the objects on the screen. Besides that, it also will increase the functional relationship among those button. There has three parts:

a) Common function

• Only "+" can function
• other cannot

b) Scientific function

• cannot function at all

c) Key-in based function

• "Add" can function
• "Subtract" can function
• "Multiply" can work
• "Divide" also can