How do you convert a alphabet into binary form?

Answer 1

The idea is to define groups of bits as representing specific letters. One commonly used system is the ASCII encoding, which uses groups of 8 bits. Here, the letter "A" (uppercase "A") is encoded as 01000001 (decimal 65), "B" as 01000010 (decimal 66), "C" as 01000011 (decimal 67), etc. Of course, other encodings are possible, and other encodings are, indeed, used.