Boolean algebra
Algebra involving variables containing only "true" and "false" (or 1 and 0) as values
Can a computer be programmed entirely in 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.
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?