In computing,
FASTOPEN is a
DOS
DOS (, ) is a family of disk-based operating systems for IBM PC compatible computers. The DOS family primarily consists of IBM PC DOS and a rebranded version, Microsoft's MS-DOS, both of which were introduced in 1981. Later compatible syste ...
terminate-and-stay-resident
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. This technique ...
command
Command may refer to:
Computing
* Command (computing), a statement in a computer language
* command (Unix), a Unix command
* COMMAND.COM, the default operating system shell and command-line interpreter for DOS
* Command key, a modifier key on A ...
, introduced in
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. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few op ...
version 3.3,
that provides accelerated access to frequently-used
files and directories.
The command is also available in
SISNE plus.
Overview
The command works with
hard disk
A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating hard disk drive platter, pla ...
s, but not with
diskette
A floppy disk or floppy diskette (casually referred to as a floppy, a diskette, or a disk) is a type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined with a ...
s (probably for security when swapping) or with network drives (probably because such drives do not offer block-level access, only file-level access).
It is possible to specify for which drives should operate, how many files and directories should be
cached on each (10 by default, up to 999 total), how many regions for each drive should be cached and whether the cache should be located in conventional or
expanded memory
In DOS memory management, expanded memory is a system of bank switching that provided additional memory to DOS programs beyond the limit of conventional memory (640 KiB).
''Expanded memory'' is an umbrella term for several incompatible tech ...
.
If a disk
defragmenter
In the maintenance of file systems, defragmentation is a process that reduces the degree of fragmentation. It does this by physically organizing the contents of the mass storage device used to store files into the smallest number of contiguous ...
tool is used, or if
Windows Explorer
File Explorer, previously known as Windows Explorer, is a file manager application and default desktop environment that is included with releases of the Microsoft Windows operating system from Windows 95 onwards. It provides a graphical user i ...
is to move files or directories, while is installed, it is necessary to reboot the computer afterwards, because would remember the old position of files and directories, causing MS-DOS to display garbage if e.g. "
DIR" was performed.
DR DOS 6.0 includes an implementation of the command.
[DR DOS 6.0 User Guide Optimisation and Configuration Tips](_blank)
/ref> is also part of the Windows XP
Windows XP is a major release of Microsoft's Windows NT operating system. It was released to manufacturing on August 24, 2001, and later to retail on October 25, 2001. It is a direct successor to Windows 2000 for high-end and business users a ...
MS-DOS subsystem to maintain MS-DOS and MS OS/2 version 1.x compatibility. It is not available on Windows XP 64-Bit Edition
Windows XP, which is the next version of Windows NT after Windows 2000 and the successor to the consumer-oriented Windows Me, has been released in several editions since its original release in 2001.
Windows XP is available in many languages. In ...
.MS-DOS subsystem commands
/ref>
The "fastopen" name has since been reused for various other "accelerating" software products.
See also
* FASTOPEN (CONFIG.SYS directive)
* SmartDrive
SmartDrive (or SMARTDRV) is a disk caching program shipped with MS-DOS versions 4.01 through 6.22 and Windows 3.0 through Windows 3.11. It improves data transfer rates by storing frequently accessed data in random-access memory (RAM).
Early ...
* List of DOS commands
This article lists notable commands provided by the MS-DOS disk operating system (DOS), especially as used on an IBM PC compatible computer. Other DOS variants as well as the legacy Windows shell, Command Prompt (cmd.exe), provide many of these c ...
References
Further reading
*
External DOS commands
{{DOS-stub