What is Software

Once upon a time I worked in a software company as a software engineer . And I stayed in my aunts house since it was closer to the workplace. My aunt had no clue what software engineering is. However, she believed its about VERY IMPORTANT stuff. People who started their career as developers know the nature of life when the deadlines get closer. What so ever, I brought all the work home and thus had worked every day until mid night. This was not that difficult. After some while, when I am bit relaxed, we had a casual tea party and my aunt ask me what is your job?. Well, by knowing that my aunt know nothing about software, I started the explanation.

me:"Software is something that we could create in the computer. But its intangible. exists within the computer only! E.g. Civil Engineers create buildings, they architect, design and create them. Likewise, software engineers design, develop software." I had to create something out of nothing. It was easy for her to understand the work of Civil Engineer, but of a software engineer it seemed to be tough.

aunt: "How do you charge? because there is only something remained in the computers. The clients wont like it".

Then I just changed the flow of the conversation.

Its been one year now.  I still have the same fundamental question. How to teach or explain about software to person who hardly has any idea about computers in a short period?. Well the question is still open. And I am in search of a solution.