What is the lowest level programming language?

Question

Programming languages

What is the lowest level programming language? As I read on the Internet, the most popular is Assembler. But is there any other language between the machine code (yes, I know it's not a language :)) and it.

PS I apologize in advance for the stupid question. I just couldn't find an answer to it.

Answer 1

Assemblers are different, in fact, each architecture has its own assembler. And for different OS there can be dialects. Assembler is a direct correlation of machine instructions with more human-readable assembler ones, register numbering with their names, etc. So something in the middle will not work.
PS When will the Russian language become the most popular? How are you going to deal with formal languages ​​if you can't master natural?

Answer 2

Yes that's right. Only not assembler, but assemblers, because they are different. To answer the question, you can read Wikipedia on the keyword "assembler"

Answer 3

Between assembler and machine code in modern processors there is microcode.
https://ru.wikipedia.org/wiki/%D0%9C%D0%B8%D0%BA%D...
In modern processors, this is almost everywhere. But usually microcode is written by those who design the processor.