Plain Text
Refers to textual data in ASCII format... Plain text is the
most portable format because it is supported by nearly every
application on every machine... It is quite limited, however,
because it cannot contain any formatting commands... In cryptography, plain text refers to any message that is not
encrypted... Contrast with cipher text... Plain text is also called clear text... Approximately 95% of computer users prefer HTML email messages
because they look like webpages instead of this simple, plain
looking page... Do you see the difference between this simple, plain looking page and the "HTML" Page? This is the "Plain Text" page... Kind of bland huh?