| A | B |
|---|
| .com | domain type used for profit-companies |
| .biz | domain type used by business communities |
| .edu | domain type used by schools and educators |
| .org | domain type used by non-profit or organizations |
| .mil | domain type used by military |
| .gov | domain type used by government |
| address book | e-mail program that stores e-mail addresses |
| attachment | file sent with an e-mail message |
| domain | unique name given to each network |
| domain type | suffix or extension used to identify type of organization |
| hyperlink | link that can be clicked on to open a Web site |
| instant messaging | sending a brief text message across the Internet |
| mailbox | refers to a person's user name |
| message body | main part of an e-mail message |
| post office proctocal | e-mail proctocol used to access mail |
| reply | responding to the sender of an e-mail message |
| reply all | responding to everyone on the message |
| signature | adds information like user name and contact information |
| user name | used by network and e-mail server to identify a user |
| web conferencing | meeting held over the Internet |
