CONFIG.SYS, the Glossary

Table of Contents

1. 71 relations: A20 line, ArcaOS, ASCII, AUTOEXEC.BAT, BASIC, BIOS, Block (data storage), C't, Caldera (company), Caps Lock, Command-line interface, COMMAND.COM, Computerwoche, CONFIG.SYS, Configuration file, Datalight, Debug (command), Design of the FAT file system, Development of Windows 95, Device driver, DOS, DOS Plus, DR-DOS, Durango F-85, EComStation, Environment variable, Execution (computing), FASTOPEN, FidoNet, File Allocation Table, File Control Block, FlexOS, FreeDOS, Heise (company), IBM PC DOS, IBM PS/1, IBM PS/2, IBMBIO.COM, IBMDOS.COM, Installable File System, International Data Group, IO.SYS, List of DOS commands, Long filename, Memory-mapped I/O and port-mapped I/O, Microsoft, MS-DOS, MS-DOS 7, MSCDEX, MSDOS.SYS, ... Expand index (21 more) »

2. Configuration files
3. DOS configuration files
4. OS/2 files

A20 line

The A20, or address line 20, is one of the electrical lines that make up the system bus of an x86-based computer system.

See CONFIG.SYS and A20 line

ArcaOS

ArcaOS is an operating system based on OS/2, developed and marketed by Arca Noae, LLC under license from IBM.

See CONFIG.SYS and ArcaOS

ASCII

ASCII, an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication.

See CONFIG.SYS and ASCII

AUTOEXEC.BAT

AUTOEXEC.BAT is a system file that was originally on DOS-type operating systems. CONFIG.SYS and AUTOEXEC.BAT are Configuration files.

See CONFIG.SYS and AUTOEXEC.BAT

BASIC

BASIC (Beginners' All-purpose Symbolic Instruction Code) is a family of general-purpose, high-level programming languages designed for ease of use.

See CONFIG.SYS and BASIC

BIOS

In computing, BIOS (Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup).

See CONFIG.SYS and BIOS

Block (data storage)

In computing (specifically data transmission and data storage), a block, sometimes called a physical record, is a sequence of bytes or bits, usually containing some whole number of records, having a maximum length; a block size.

See CONFIG.SYS and Block (data storage)

C't

c't – Magazin für Computertechnik (Magazine for Computer Technology) is a German computer magazine, published by the Heinz Heise publishing house.

See CONFIG.SYS and C't

Caldera (company)

Caldera, Inc.

See CONFIG.SYS and Caldera (company)

Caps Lock

Caps Lock is a button on a computer keyboard that causes all letters of bicameral scripts to be generated in capital letters.

See CONFIG.SYS and Caps Lock

Command-line interface

A command-line interface (CLI) is a means of interacting with a computer program by inputting lines of text called command-lines.

See CONFIG.SYS and Command-line interface

COMMAND.COM

COMMAND.COM is the default command-line interpreter for MS-DOS, Windows 95, Windows 98 and Windows Me.

See CONFIG.SYS and COMMAND.COM

Computerwoche

Computerwoche (Computer Week) is a German weekly newspaper for CIOs and IT managers.

See CONFIG.SYS and Computerwoche

CONFIG.SYS

CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems. CONFIG.SYS and CONFIG.SYS are Configuration files, DOS configuration files and OS/2 files.

See CONFIG.SYS and CONFIG.SYS

Configuration file

In computing, configuration files (commonly known simply as config files) are files used to configure the parameters and initial settings for some computer programs or applications, server processes and operating system settings. CONFIG.SYS and configuration file are Configuration files.

See CONFIG.SYS and Configuration file

Datalight

Datalight was a privately held software company specializing in power failsafe and high performance software for preserving data integrity in embedded systems.

See CONFIG.SYS and Datalight

Debug (command)

The line-oriented debugger DEBUG.EXE is an external command in operating systems such as DOS, OS/2 and Windows (only in 16-bit/32-bit versions).

See CONFIG.SYS and Debug (command)

Design of the FAT file system

The FAT file system is a file system used on MS-DOS and Windows 9x family of operating systems.

See CONFIG.SYS and Design of the FAT file system

Development of Windows 95

The development of Windows 95 (codenamed Chicago) began around March 1992, just after the release of Windows 3.1.

See CONFIG.SYS and Development of Windows 95

Device driver

In the context of an operating system, a device driver is a computer program that operates or controls a particular type of device that is attached to a computer or automaton.

See CONFIG.SYS and Device driver

DOS

DOS is a family of disk-based operating systems for IBM PC compatible computers.

See CONFIG.SYS and DOS

DOS Plus

DOS Plus (erroneously also known as DOS+) was the first operating system developed by Digital Research's OEM Support Group in Newbury, Berkshire, UK, first released in 1985.

See CONFIG.SYS and DOS Plus

DR-DOS

DR-DOS (written as DR DOS, without a hyphen, in versions up to and including 6.0) is a disk operating system for IBM PC compatibles.

See CONFIG.SYS and DR-DOS

Durango F-85

The Durango F-85 was an early personal computer introduced in September 1978 by Durango Systems Corporation, a company started in 1977 by George E. Comstock, John M. Scandalios and Charles L. Waggoner, all formerly of Diablo Systems.

See CONFIG.SYS and Durango F-85

EComStation

eComStation or eCS is an operating system based on OS/2 Warp for the 32-bit x86 architecture.

See CONFIG.SYS and EComStation

Environment variable

An environment variable is a user-definable value that can affect the way running processes will behave on a computer.

See CONFIG.SYS and Environment variable

Execution (computing)

Execution in computer and software engineering is the process by which a computer or virtual machine interprets and acts on the instructions of a computer program.

See CONFIG.SYS and Execution (computing)

FASTOPEN

In computing, FASTOPEN is a DOS terminate-and-stay-resident command, introduced in MS-DOS version 3.3, that provides accelerated access to frequently-used files and directories.

See CONFIG.SYS and FASTOPEN

FidoNet

FidoNet logo by John Madill FidoNet is a worldwide computer network that is used for communication between bulletin board systems (BBSes).

See CONFIG.SYS and FidoNet

File Allocation Table

File Allocation Table (FAT) is a file system developed for personal computers and was the default filesystem for MS-DOS and Windows 9x operating systems.

See CONFIG.SYS and File Allocation Table

File Control Block

A File Control Block (FCB) is a file system structure in which the state of an open file is maintained.

See CONFIG.SYS and File Control Block

FlexOS

FlexOS is a discontinued modular real-time multiuser multitasking operating system (RTOS) designed for computer-integrated manufacturing, laboratory, retail and financial markets.

See CONFIG.SYS and FlexOS

FreeDOS

FreeDOS (formerly Free-DOS and PD-DOS) is a free software operating system for IBM PC compatible computers.

See CONFIG.SYS and FreeDOS

Heise (company)

Heise (officially Heise Gruppe) is a German media conglomerate headquartered in Hanover.

See CONFIG.SYS and Heise (company)

IBM PC DOS

IBM PC DOS (an acronym for IBM Personal Computer Disk Operating System),Formally known as "The IBM Personal Computer DOS" from versions 1.0 through 3.30, as reported in those versions' respective COMMAND.COM outputs also known as PC DOS or IBM DOS, is a discontinued disk operating system for the IBM Personal Computer, its successors, and IBM PC compatibles.

See CONFIG.SYS and IBM PC DOS

IBM PS/1

The PS/1 (known in some European countries as the PS/1000) is a brand for a line of personal computers that marked IBM's return to the home market in 1990, five years after the IBM PCjr.

See CONFIG.SYS and IBM PS/1

IBM PS/2

The Personal System/2 or PS/2 is IBM's second generation of personal computers.

See CONFIG.SYS and IBM PS/2

IBMBIO.COM

IBMBIO.COM is a system file in many DOS operating systems.

See CONFIG.SYS and IBMBIO.COM

IBMDOS.COM

IBMDOS.COM is the filename of the DOS kernel.

See CONFIG.SYS and IBMDOS.COM

Installable File System

The Installable File System (IFS) is a filesystem API in MS-DOS/PC DOS 4.x, IBM OS/2 and Microsoft Windows that enables the operating system to recognize and load drivers for file systems.

See CONFIG.SYS and Installable File System

International Data Group

International Data Group (IDG, Inc.) is a market intelligence and demand generation company focused on the technology industry.

See CONFIG.SYS and International Data Group

IO.SYS

is an essential part of MS-DOS and Windows 9x.

See CONFIG.SYS and IO.SYS

List of DOS commands

This article presents a list of commands used by MS-DOS compatible operating systems, especially as used on IBM PC compatibles.

See CONFIG.SYS and List of DOS commands

Long filename

Long filename (LFN) support is Microsoft's backward-compatible extension of the 8.3 filename (short filename) naming scheme used in DOS.

See CONFIG.SYS and Long filename

Memory-mapped I/O and port-mapped I/O

Memory-mapped I/O (MMIO) and port-mapped I/O (PMIO) are two complementary methods of performing input/output (I/O) between the central processing unit (CPU) and peripheral devices in a computer (often mediating access via chipset).

See CONFIG.SYS and Memory-mapped I/O and port-mapped I/O

Microsoft

Microsoft Corporation is an American multinational corporation and technology company headquartered in Redmond, Washington.

See CONFIG.SYS and Microsoft

MS-DOS

MS-DOS (acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft.

See CONFIG.SYS and MS-DOS

MS-DOS 7

MS-DOS 7 is a real mode operating system for IBM PC compatibles.

See CONFIG.SYS and MS-DOS 7

MSCDEX

MSCDEX or Microsoft CD-ROM Extensions is a software program produced by Microsoft and included with MS-DOS 6.x and certain versions of Windows to provide CD-ROM support.

See CONFIG.SYS and MSCDEX

MSDOS.SYS

MSDOS.SYS is a system file in MS-DOS and Windows 9x operating systems. CONFIG.SYS and MSDOS.SYS are DOS configuration files.

See CONFIG.SYS and MSDOS.SYS

Multiuser DOS

Multiuser DOS is a real-time multi-user multi-tasking operating system for IBM PC-compatible microcomputers.

See CONFIG.SYS and Multiuser DOS

Name–value pair

A name–value pair, also called an attribute–value pair, key–value pair, or field–value pair, is a fundamental data representation in computing systems and applications.

See CONFIG.SYS and Name–value pair

Novell

Novell, Inc. was an American software and services company headquartered in Provo, Utah, that existed from 1980 until 2014.

See CONFIG.SYS and Novell

Num Lock

Num Lock or Numeric Lock (⇭) is a key on the numeric keypad of most computer keyboards.

See CONFIG.SYS and Num Lock

Operating system

An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs.

See CONFIG.SYS and Operating system

OS/2

OS/2 (Operating System/2) is a series of computer operating systems, initially created by Microsoft and IBM under the leadership of IBM software designer Ed Iacobucci.

See CONFIG.SYS and OS/2

Power-on self-test

A power-on self-test (POST) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on.

See CONFIG.SYS and Power-on self-test

Protection ring

In computer science, hierarchical protection domains, often called protection rings, are mechanisms to protect data and functionality from faults (by improving fault tolerance) and malicious behavior (by providing computer security).

See CONFIG.SYS and Protection ring

PTS-DOS

PTS-DOS (aka PTS/DOS) is a disk operating system, a DOS clone, developed in Russia by PhysTechSoft and Paragon Technology Systems.

See CONFIG.SYS and PTS-DOS

Root directory

In a computer file system, and primarily used in the Unix and Unix-like operating systems, the root directory is the first or top-most directory in a hierarchy.

See CONFIG.SYS and Root directory

Scroll Lock (⤓ or ⇳) is a lock key (typically with an associated status light) on most IBM-compatible computer keyboards.

See CONFIG.SYS and Scroll Lock

Serial port

A serial port is a serial communication interface through which information transfers in or out sequentially one bit at a time.

See CONFIG.SYS and Serial port

Terminate-and-stay-resident program

A terminate-and-stay-resident program (commonly TSR) is a computer program running under DOS that uses a system call to return control to DOS as though it has finished, but remains in computer memory so it can be reactivated later.

See CONFIG.SYS and Terminate-and-stay-resident program

VEB Robotron

VEB Kombinat Robotron (or simply Robotron) was the largest East German electronics manufacturer.

See CONFIG.SYS and VEB Robotron

Virtual 8086 mode

In the 80386 microprocessor and later, virtual 8086 mode (also called virtual real mode, V86-mode, or VM86) allows the execution of real mode applications that are incapable of running directly in protected mode while the processor is running a protected mode operating system.

See CONFIG.SYS and Virtual 8086 mode

Volume boot record

A volume boot record (VBR) (also known as a volume boot sector, a partition boot record or a partition boot sector) is a type of boot sector introduced by the IBM Personal Computer.

See CONFIG.SYS and Volume boot record

Windows 95

Windows 95 is a consumer-oriented operating system developed by Microsoft as part of its Windows 9x family of operating systems.

See CONFIG.SYS and Windows 95

Windows NT

Windows NT is a proprietary graphical operating system produced by Microsoft as part of its Windows product line, the first version of which, Windows NT 3.1, was released on July 27, 1993.

See CONFIG.SYS and Windows NT

Windows Registry

The Windows Registry is a hierarchical database that stores low-level settings for the Microsoft Windows operating system and for applications that opt to use the registry. CONFIG.SYS and Windows Registry are Configuration files.

See CONFIG.SYS and Windows Registry

Year 2000 problem

The year 2000 problem, or simply Y2K, refers to potential computer errors related to the formatting and storage of calendar data for dates in and after the year 2000.

See CONFIG.SYS and Year 2000 problem

4DOS

4DOS is a command-line interpreter by JP Software, designed to replace the default command interpreter COMMAND.COM in Microsoft DOS and Windows.

See CONFIG.SYS and 4DOS

See also

Configuration files

• .htaccess
• .htpasswd
• .properties
• AUTOEXEC.BAT
• Autorun.inf
• CONFIG.SYS
• Configuration file
• Deployment descriptor
• EditorConfig
• Fstab
• Hosts (file)
• INF file
• INI file
• LMHOSTS
• List of shell icon overlay identifiers
• Passwd
• Profile configuration file
• Resolv.conf
• Resolvconf
• SYSTEM.INI
• Sqlnet.ora
• WIN.INI
• Windows Registry
• XF86Config
• Xorg.conf

DOS configuration files

• CONFIG.SYS
• MSDOS.SYS

OS/2 files

• CONFIG.SYS
• Cmd.exe

References

[1] https://en.wikipedia.org/wiki/CONFIG.SYS

Also known as ! (CONFIG.SYS directive), * (CONFIG.SYS directive), ; (CONFIG.SYS directive), ? (CONFIG.SYS directive), ABORT, ABORT (CONFIG.SYS directive), ACCDATE, ACCDATE (CONFIG.SYS directive), AT (CONFIG.SYS directive), AUTOCHECK, AUTOCHECK (CONFIG.SYS directive), AUTOFAIL, AUTOFAIL (CONFIG.SYS directive), AUX (CONFIG.SYS directive), AVAILDEV, AVAILDEV (CONFIG.SYS directive), BASEDEV, BASEDEV (CONFIG.SYS directive), BEEP (CONFIG.SYS directive), BOOTMGR (CONFIG.SYS group), BOOTNEXT, BOOTNEXT (CONFIG.SYS directive), BREAK, BREAK (CONFIG.SYS directive), BUFFERS, BUFFERS (CONFIG.SYS directive), BUFFERSHIGH, BUFFERSHIGH (CONFIG.SYS directive), CACHEFLUSH (CONFIG.SYS directive), CACHESIZE (CONFIG.SYS directive), CACHETTL (CONFIG.SYS directive), CALL (CONFIG.SYS directive), CAPSLOCK, CAPSLOCK (CONFIG.SYS directive), CCONFIG.BIN, CCONFIG.INI, CCONFIG.SYS, CDDBUFFERS, CDDBUFFERS (CONFIG.SYS directive), CDDNAME, CDDNAME (CONFIG.SYS directive), CHAIN (CONFIG.SYS directive), CLOCK (CONFIG.SYS directive), CLS (CONFIG.SYS directive), CMOSADDR, CMOSADDR (CONFIG.SYS directive), CODEPAGE, CODEPAGE (CONFIG.SYS directive), COLOR, COLOR (CONFIG.SYS directive), COM1 (CONFIG.SYS directive), COM2 (CONFIG.SYS directive), COM3 (CONFIG.SYS directive), COM4 (CONFIG.SYS directive), COMAREA, COMAREA (CONFIG.SYS directive), COMMENT, COMMENT (CONFIG.SYS directive), COMMENT (CONFIG.SYS group), COMMENTS, COMMENTS (CONFIG.SYS directive), COMMON (CONFIG.SYS group), CONFIG.100, CONFIG.331, CONFIG.332, CONFIG.333, CONFIG.334, CONFIG.335, CONFIG.340, CONFIG.341, CONFIG.500, CONFIG.600, CONFIG.700, CONFIG.701, CONFIG.702, CONFIG.703, CONFIG.704, CONFIG.705, CONFIG.706, CONFIG.707, CONFIG.APP, CONFIG.DOS, CONFIG.NT, CONFIG.OS2, CONFIG.PTS, CONFIG.UI, CONFIG.W40, CONFIG.WOS, COUNTRY, COUNTRY (CONFIG.SYS directive), CPOS, CPOS (CONFIG.SYS directive), CPSW, CPSW (CONFIG.SYS directive), CPU (CONFIG.SYS directive), CPU286, CPU286 (CONFIG.SYS directive), CPU286+, CPU286+ (CONFIG.SYS directive), CPU386, CPU386 (CONFIG.SYS directive), CPU386+, CPU386+ (CONFIG.SYS directive), CPU486, CPU486 (CONFIG.SYS directive), CPU486+, CPU486+ (CONFIG.SYS directive), CPU86, CPU86 (CONFIG.SYS directive), CPU86+, CPU86+ (CONFIG.SYS directive), CPU88, CPU88 (CONFIG.SYS directive), CPU88+, CPU88+ (CONFIG.SYS directive), Colon (CONFIG.SYS directive), DCONFIG.100, DCONFIG.331, DCONFIG.332, DCONFIG.333, DCONFIG.334, DCONFIG.335, DCONFIG.340, DCONFIG.341, DCONFIG.500, DCONFIG.600, DCONFIG.700, DCONFIG.701, DCONFIG.702, DCONFIG.703, DCONFIG.704, DCONFIG.705, DCONFIG.706, DCONFIG.707, DCONFIG.SYS, DDSCS, DDSCS (CONFIG.SYS directive), DEBLOCK, DEBLOCK (CONFIG.SYS directive), DEBUG (CONFIG.SYS directive), DEFAULT, DEFAULT (CONFIG.SYS directive), DEVICE, DEVICE (CONFIG.SYS directive), DEVICE (CONFIG.SYS), DEVICEHIGH, DEVICEHIGH (CONFIG.SYS directive), DEVINFO, DEVINFO (CONFIG.SYS directive), DISKCACHE, DISKCACHE (CONFIG.SYS directive), DISKETTE, DISKETTE (CONFIG.SYS directive), DISPLAY, DISPLAY (CONFIG.SYS directive), DOS (CONFIG.SYS directive), DOS boot menu, DOSDATA, DOSDATA (CONFIG.SYS directive), DOSDIR, DOSDIR (CONFIG.SYS directive), DPATH, DPATH (CONFIG.SYS directive), DPBS (CONFIG.SYS directive), DRCONFIG.702, DRCONFIG.707, DRCONFIG.SYS, DRIVATTR, DRIVATTR (CONFIG.SYS directive), DRIVPARM, DRIVPARM (CONFIG.SYS directive), DRSWITCH, DRSWITCH (CONFIG.SYS directive), DUMPPROCESS, DUMPPROCESS (CONFIG.SYS directive), ECHO (CONFIG.SYS directive), EECHO, EECHO (CONFIG.SYS directive), ERREXE, ERREXE (CONFIG.SYS directive), ERROR, ERROR (CONFIG.SYS directive), EXECA20OFF, EXECA20OFF (CONFIG.SYS directive), EXIT (CONFIG.SYS directive), FASTOPEN (CONFIG.SYS directive), FCBS (CONFIG.SYS directive), FCBSHIGH, FCBSHIGH (CONFIG.SYS directive), FDCONFIG.SYS, FILENAME, FILENAME (CONFIG.SYS directive), FILES, FILES (CONFIG.SYS directive), FILESHIGH, FILESHIGH (CONFIG.SYS directive), FORCE (CONFIG.SYS directive), GETKEY, GETKEY (CONFIG.SYS directive), GOSUB (CONFIG.SYS directive), GOTO (CONFIG.SYS directive), HIBUFFERS, HIBUFFERS (CONFIG.SYS directive), HIDEVICE, HIDEVICE (CONFIG.SYS directive), HIDOS, HIDOS (CONFIG.SYS directive), HIFCBS, HIFCBS (CONFIG.SYS directive), HIFILES, HIFILES (CONFIG.SYS directive), HIINSTALL, HIINSTALL (CONFIG.SYS directive), HIINSTALLLAST, HIINSTALLLAST (CONFIG.SYS directive), HILASTDRIVE, HILASTDRIVE (CONFIG.SYS directive), HISHELL, HISHELL (CONFIG.SYS directive), HISTACKS, HISTACKS (CONFIG.SYS directive), HISTORY (CONFIG.SYS directive), HISTORY (CONFIG.SYS), HMAREA, HMAREA (CONFIG.SYS directive), IDLEHALT, IDLEHALT (CONFIG.SYS directive), IDTCHK, IDTCHK (CONFIG.SYS directive), IFS (CONFIG.SYS directive), IGNORE, IGNORE (CONFIG.SYS directive), INCLUDE, INCLUDE (CONFIG.SYS directive), INSERT (CONFIG.SYS directive), INSTALL, INSTALL (CONFIG.SYS directive), INSTALL (CONFIG.SYS), INSTALLHIGH, INSTALLHIGH (CONFIG.SYS directive), INSTALLLAST, INSTALLLAST (CONFIG.SYS directive), IOPL (CONFIG.SYS directive), IRQPRIORITY (CONFIG.SYS directive), KEYBOARD, KEYBOARD (CONFIG.SYS directive), KEYBUF, KEYBUF (CONFIG.SYS directive), LASTDRIVE, LASTDRIVE (CONFIG.SYS directive), LASTDRIVEHIGH, LASTDRIVEHIGH (CONFIG.SYS directive), LIBPATH (CONFIG.SYS directive), LOADFIX, LOADFIX (CONFIG.SYS directive), LOCKS, LOCKS (CONFIG.SYS directive), LOGO (CONFIG.SYS directive), LPT1 (CONFIG.SYS directive), LPT2 (CONFIG.SYS directive), LPT3 (CONFIG.SYS directive), LPT4 (CONFIG.SYS directive), List of CONFIG.SYS directives, MAXWAIT, MAXWAIT (CONFIG.SYS directive), MCONFIG.SYS, MEMMAN, MEMMAN (CONFIG.SYS directive), MEMORY, MEMORY (CONFIG.SYS directive), MENU, MENU (CONFIG.SYS directive), MENUCOLOR, MENUCOLOR (CONFIG.SYS directive), MENUDEFAULT, MENUDEFAULT (CONFIG.SYS directive), MENUITEM, MENUITEM (CONFIG.SYS directive), MULTITRACK, MULTITRACK (CONFIG.SYS directive), NEWFILE (CONFIG.SYS directive), NOCHAR, NOCHAR (CONFIG.SYS directive), NUMLOCK, NUMLOCK (CONFIG.SYS directive), ODCONFIG.701, ODCONFIG.702, ODCONFIG.SYS, ONERROR, ONERROR (CONFIG.SYS directive), PAUSE (CONFIG.SYS directive), PAUSEONERROR, PAUSEONERROR (CONFIG.SYS directive), PC (CONFIG.SYS directive), PRINTMONBUFFER, PRINTMONBUFFER (CONFIG.SYS directive), PRINTMONBUFSIZE, PRINTMONBUFSIZE (CONFIG.SYS directive), PRIORITY, PRIORITY (CONFIG.SYS directive), PRIORITY DISK IO, PRIORITY DISK IO (CONFIG.SYS directive), PRN (CONFIG.SYS directive), PROTECTONLY, PROTECTONLY (CONFIG.SYS directive), PROTSHELL, PROTSHELL (CONFIG directive), PS1 (CONFIG.SYS directive), PS2 (CONFIG.SYS directive), PTSDOS (CONFIG.SYS group), QUIET (CONFIG.SYS directive), REIPL, REIPL (CONFIG.SYS directive), REM (CONFIG.SYS directive), RESERVEDRIVELETTER, RESERVEDRIVELETTER (CONFIG.SYS directive), RESUMECHAR, RESUMECHAR (CONFIG.SYS directive), RETURN (CONFIG.SYS directive), RMSIZE, RMSIZE (CONFIG.SYS directive), RUN (CONFIG.SYS directive), RXCONFIG.SYS, SAVENAME, SAVENAME (CONFIG.SYS directive), SCREEN, SCREEN (CONFIG.SYS directive), SCROLLOCK, SCROLLOCK (CONFIG.SYS directive), SET (CONFIG.SYS directive), SHELL, SHELL (CONFIG.SYS directive), SHELLHIGH, SHELLHIGH (CONFIG.SYS directive), SHIFTSTATE, SHIFTSTATE (CONFIG.SYS directive), SHUTDOWN, SHUTDOWN (CONFIG.SYS directive), SOFTREBOOT, SOFTREBOOT (CONFIG.SYS directive), STACK, STACK (CONFIG.SYS directive), STACKS, STACKS (CONFIG.SYS directive), STACKSHIGH, STACKSHIGH (CONFIG.SYS directive), STACKSIZE (CONFIG.SYS directive), STORAGE, STORAGE (CONFIG.SYS directive), STRING (CONFIG.SYS directive), STUBA20, STUBA20 (CONFIG.SYS directive), SUBMENU, SUBMENU (CONFIG.SYS directive), SUPPRESSPOPUPS, SUPPRESSPOPUPS (CONFIG.SYS directive), SWAPPATH, SWAPPATH (CONFIG.SYS directive), SWITCH (CONFIG.SYS directive), SWITCHAR (CONFIG.SYS directive), SWITCHES, SWITCHES (CONFIG.SYS directive), SXFAKEHWFPU, SXFAKEHWFPU (CONFIG.SYS directive), SYSBOOT, SYSBOOT (CONFIG.SYS directive), SYSGEN, SYSGEN (CONFIG.SYS directive), SYSLOAD, SYSLOAD (CONFIG.SYS directive), SYSTEMPOOL (CONFIG.SYS directive), SYSTOUMB, SYSTOUMB (CONFIG.SYS directive), THREADS, THREADS (CONFIG.SYS directive), TIMEOUT, TIMEOUT (CONFIG.SYS directive), TIMESLICE (CONFIG.SYS directive), TMPEXT, TMPEXT (CONFIG.SYS directive), TRACE (CONFIG.SYS directive), TRACEBUF, TRACEBUF (CONFIG.SYS directive), TRAPDUMP, TRAPDUMP (CONFIG.SYS directive), UMB (CONFIG.SYS directive), UMBSRV, UMBSRV (CONFIG.SYS directive), USERAM, USERAM (CONFIG.SYS directive), VERIFY, VERIFY (CONFIG.SYS directive), VERSION (CONFIG.SYS directive), VGASCREEN, VGASCREEN (CONFIG.SYS directive), VIDEOMODE, VIDEOMODE (CONFIG.SYS directive), VIRTDMA, VIRTDMA (CONFIG.SYS directive), VME (CONFIG.SYS directive), VXD (CONFIG.SYS directive), WINDOWS (CONFIG.SYS directive), XBDA, XBDA (CONFIG.SYS directive), XT (CONFIG.SYS directive), YEAR2000, YEAR2000 (CONFIG.SYS directive), YESCHAR, YESCHAR (CONFIG.SYS directive), ZOMBIEDRV, ZOMBIEDRV (CONFIG.SYS directive).

, Multiuser DOS, Name–value pair, Novell, Num Lock, Operating system, OS/2, Power-on self-test, Protection ring, PTS-DOS, Root directory, Scroll Lock, Serial port, Terminate-and-stay-resident program, VEB Robotron, Virtual 8086 mode, Volume boot record, Windows 95, Windows NT, Windows Registry, Year 2000 problem, 4DOS.