Is it possible to program in binary?

Question

The title really says it all. A friend of mine told me he knows someone who can program in binary. I\'ve never heard of someone programming in binary and a few quick Google

Answer 1

For the brave of heart: you can try getting a MikeOS floppy image and running the monitor.bin program. It allows you to enter hexadecimal opcodes by hand and execute them. For example (as stated on the docs), entering the following instructions: BE0790 E8FD6F C3 4D00$ will produce a single M on the screen.