Authentication
A process of proving the identity of a computer or computer user. For users, it generally involves a user name and password. Computers usually pass a code that identifies that they are part of a network.
Attachment
A file embedded in an e-mail message. It is possible to have one or more attachments embedded in an e-mail message. If you are sending or receiving attachments, you must have an e-mail client that supports MIME encoding, or the attachments will show up in encoded form, which basically looks like a large block of numbers and letters.
Font
As it relates to computers today, a font is a specific style of displaying characters, often scalable to a variety of sizes. “Arial” is a font, for example. This differs from the traditional definition of font, where each style and size was its own font (i.e., “9 point Arial” as opposed to simply “Arial”).
Folder
A term coined to be synonymous and more accessible than “directory.” Now the terms are basically synonymous, but folder tends to imply a more graphical interface for managing files.
