But Word 2007 is backward compatible, meaning it was designed to work with previous versions. You can work with and save Word 2007 documents in the format of previous versions (97-2003)â¦these documents are saved with the .doc file extension. This is called compatibility mode.ut Word 2007 is backward compatible, meaning it was designed to work with previous versions. You can work with and save Word 2007 documents in the format of previous versions (97-2003)â¦these documents are saved with the .doc file extension. This is called compatibility mode.
asynchronous - (digital communication) pertaining to a transmission technique that does not require a common clock between the communicating devices; timing signals are derived from special characters in the data stream itself.
Conversely, asynchronous communication is not immediately received or responded to by those involved. Email, forum posts, mailed letters, and bulletin boards are examples of asynchronous communication. To confuse the issue, many technologies afford both types of communication.