Glossary - D
![[ Return to TOC ]](jp_toc.gif){kind=small}
Glossary - D |
|
Date Range - A TCC feature which allows you to select files based on the date and time they were last modified. For details, see Date Ranges.
Date Stamp - Information which may be stored in a file's directory entry to show the dates on which the file was created, last modified, and last accessed for reading. Only the modification date is available in the FAT file system. See also Time Stamp.
Default Directory - Same as Current Directory.
Default Drive - Same as Current Drive.
Deletion Tracking - An operating system or utility software feature designed to allow you to "undelete" or recover files which have recently been deleted. Delete tracking typically works by temporarily retaining the deleted files and / or information about the deleted files in a special area of the disk.
Description - A special feature of TCC. A string of characters may be assigned to describe a file, using the DESCRIBE command, typically stored in the file DESCRIPT.ION in the same directory as the file itself.
Destination - In some file processing commands (e.g. COPY or MOVE), the name or directory the files should have after the command is completed. It is generally the last specification on the command line. See also Source.
Detached Process - A program which is detached from the normal means of user input and output, and cannot use the keyboard, mouse, or video display.
Device Driver - A program which allows the operating system to communicate with a device. It must be loaded into memory before the system can access the attached devices. Device drivers are also used to manage memory or for other similar internal functions.
Device - A physical device for input or output such as the console, a communications port, or a printer. Sometimes device is used to refer to character devices, and excludes block devices.
Directive - The name of a configurable Take Command or TCC option and the value assigned to it. Most directives are set with the OPTION command. See also: initialization file.
1) A portion of a disk, identified by a name and a relationship to other directories in a directory tree structure, with the tree starting at the root directory. A directory separates files on the disk into logical groups, but does not represent a physical division of the data on the disk.
2) The attribute of the entry for the directory in its parent directory.
Directory History - A TCC feature which allows you to recall recently-used directory names in a popup window, and choose one to switch to.
Directory History Window - The name of the pop-up window displaying the Directory History.
Directory Junction - same as soft link.
Directory Stack - A TCC feature, implemented through the PUSHD and POPD commands, which allow you to save the current directory and return to it later. See also Stack.
Directory Tree - The branching structure of directories on a disk, starting at the root directory. The root of the tree is usually considered as the top of the structure, so the actual structure can be visualized as an upside-down tree with the root at the top and branches going down.
Domain -in mathematics the set of values for which a function is defined.
Drive Letter - A letter used by some operating systems to designate a specific local disk volume, or part or all of a network server volume. In most cases drive letters range from A - Z, but some network operating systems allow the use of certain other characters as drive letters to support more than 26 disk volumes.