So that could mean several:
Write binary the real mother of all...
Or write in Plankalkül which is more or less the first programming language (well it wasn't for a completely electronic device, though)
Or Short Code, the first computer language actually used on an electronic computing device.
Ah, you mean C, that Hippie language from the seventies? C’mon I am even older than that (by one year), and I don't have grey hair (no I'm not dyeing it).
I don't get it how you come to think of C as the mother of all programming languages...