Today, computers are fast enough to process data while it is being copied - on-the-fly. In the past, data was first copied onto the hard drive and then processed.

The act of recording data to a compact disc by referencing pointers to the data files, rather than a fixed ISO-9660 image. The image of the disc contents in this type of application is usually referred to as a virtual image.

To write on-the-fly means to write to CD data referenced in a virtual image without first writing a real ISO 9660 image.

1} A term used for needing right away. 2} A term used when the server forgot to order some part of the entree. 3} A term used to get a new dish in place of a bring back. 4} A good place to put the dish if their is one on the table.

Temporary performance of a calculation when needed. An instruction that is transparently invoked by the user according to conditions encountered during a transaction. Automatic Boolean operations that add, modify or skip certain processing steps under a particular set of conditions. For example, when adding a new spatial feature, the ID number of the previously encoded feature is defined along with the default rules for sequentially generating the next ID number to be used, modified or ignored.

Computer operations that develop or occur dynamically in 'real-time', rather than as the result of something that is statically predefined.

making player changes or substitutions while play is under way.