Write may refer to any of the following:
1. When referring to data or a storage device, writing is taking information and moving it to an alternate location. For example, saving data onto a diskette is the same as writing information to a diskette.
Almost all forms of media are writable, which means any information can be written to it. However, if a disk is write protected or you don't have permission to write to the media, you will receive a write error.
In contrast to writing is reading.
A word processor is software used to write a letter or anther type of document.
4. When dealing with permissions or security, write is a setting that lets a user or computer write to a file. For example, if a file is set as read-only, the computer would not be able to make changes to a file.