Glossary - R        A B C D E F G H I J K L M N O P Q R  S T U V W X

RAM - Random Access Memory.

RAM Disk - Another name for Virtual Disk.

Random Access Memory (RAM) - The physical memory used to store data while a computer is operating. The information in most types of RAM is lost when power is turned off.

Range (file selection) - See Date Range, Description Range, File Exclusion Range, Size Range, Time Range.

Range - the set of possible values of a function.        

Read Only - A file attribute indicating that the file can be read, but not written or deleted by the operating system or TCC unless special commands are used.

Read Only Memory (ROM) - Physical memory used to store information which cannot be readily modified.

Reboot - The process of restarting the computer with software, with the keyboard (e.g. by pressing Ctrl-Alt-Del), by pressing a reset button, or by turning the power off and back on. See also Boot, Cold Reboot, and Warm Reboot.

Redirection - A method for sending the output from a command to a file, or of providing the input for a command from a file. See also Pipe.

Registry - A hierarchically organized data file (or set of files) maintained by Windows to hold system parameters, hardware and software settings, and other similar information used by the operating system or by other software packages.

Reparse Point - same as soft link

REXX - A file and text processing language developed by IBM, and available on many PC and other platforms.

ROM - Read Only Memory.

Root Directory - The first directory on a disk, from which all other directories are "descended". The root directory is referenced with a single backslash [\].