What are values included in Boolean algebra? At what level are program codes read directly by computers? Are the values included in #2 the same as #1?
Boolean algebra
Boolean algebra is the branch of algebra in which the values of the variables are the truth values true and false, usually denoted 1 and 0 respectively.  Mathematics in 1 and 0 is also called binary or machine language. Computers are programmed in machine language.
Algebra involving variables containing only "true" and "false" (or 1 and 0) as values
Can a computer be programmed entirely in Boolean algebra?