Random Question. Who knows binary?

its probably just me but when I get bored I try and write things in binary and I'm wondering if anyone else does this or something like this

I do, I have also made my own 4-bit real life computer one time! It could run basic programs. Im now working on a computer called bob-8 an 8 bit computer with an GPU and an assembly language called bobASM and maybe an OS called bobOS I have only made the GPU it can render to an 50 x 50 area and can store 4 bits of info... pretty basic!

:D

I'm currently trying to make a calculator using only basic logic gates. currently it thinks 011 + 001 equals 000 but I'm trying to fix it