Glossary - I

4 A B C D E F G H K L M N O P R S T U V W X 

IFS or Installable File System:  A file system which can be loaded when 
required to support devices such as CD-ROM or network drives, or 
non-default disk formats like HPFS (in OS/2) or NTFS (in Windows NT). 
 Installable file systems are primarily supported 32-bit operating systems 
like OS/2 and Windows NT.  Depending on operating system design they may 
be loaded at boot time, or loaded and unloaded dynamically while the 
system is running. 

Include List:  A concise method of specifying several files or groups of 
files in the same directory, for use with all CMD.EXE commands which take 
file names as arguments. 

Inheritance:  A feature which allows one copy of CMD.EXE to "inherit" the 
.INI file data, aliases, command history, and directory history from a 
previous copy.  More generally, a system which allows one program to pass 
information or settings on to another, often to a second copy of the same 
program. 

.INI File:  The CMD.EXE initialization file containing directives which 
set the initial configuration of the command processor. 

Insert Mode:  When editing text, a mode in which newly typed characters 
are inserted into the line at the cursor position, rather than overwriting 
existing characters on the line.  See also Overstrike Mode. 

Internal Command:  A command which is part of the command processor, as 
opposed to an external command. 

Internal Variables:  Environment variables created by CMD.EXE to provide 
information about your system.  Internal variables are evaluated each time 
they are used, and are not actually stored in the environment.