So I was thinking about computers last night, and I realized something.
In order to make a computer work you need software (duh) like an operating system and so on. Now, to create software as complicated as an OS you need a computer, which in turn needs software to work. This leads to the conclusion that the computer software that enables me to write this is a direct descendant to the earliest software.
I find that pretty cool, just like all humans are related, so are the software that we use related in a very similar way.