I would be interested to hear a piece of software that you wouldn't consider a "big toy" or even a "toy" at all. But let's say that software at my company is ju

I would be interested to hear a piece of software that you wouldn't consider a "big toy" or even a "toy" at all. But let's say that software at my company is just a "big toy", it still runs the company's business, that makes it important.