Here is an example of what alphabetic characters look like when they are translated via ASCII into bits and hex characters.

The following text has been translated, "Hi my name is Bill Hitchcock"

In binary, this looks like:
01001000 01101001 00100000 01101101 01111001 00100000 01101110 01100001 01101101 01100101 00100000 01101001 01110011 00100000 01000010 01101001 01101100 01101100 00100000 01001000 01101001 01110100 01100011 01101000 01100011 01101111 01100011 01101011

In Hex, this looks like:
48 69 20 6d 79 20 6e 61 6d 65 20 69 73 20 42 69 6c 6c 20 48 69 74 63 68 63 6f 63 6b