Address Munging
Address Munging is the process of modifying an e-mail address to make it invalid, in such a way that a legitimate reader can put it back together again. This technique is used to hide (valid) e-mail addresses from e-mail harvesters (and thus reduce the likelihood of receiving spam).
Bandwidth
The amount of data that can be transmitted in a fixed amount of time.
Cache
A memory store used to hold a copy of data, to improve the apparent speed of computer components including processors, disk drives, graphics cards etc. Where data is available in the cache it is retrieved from the cache instead of the device.
Database
A collection of related records. In computing a database is normally taken as a structured collection of records, that is managed and queried using a database management system (DBMS).