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CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems. It is a special ASCII text file that contains user-accessible setup or configuration directives evaluated by the operating system during boot. CONFIG.SYS was introduced with DOS 2.0.
The directives in this file configure DOS for use with devices and applications in the system. The CONFIG.SYS directives also set up the memory managers in the system. After processing the CONFIG.SYS file, DOS proceeds to load and execute the command shell specified in the SHELL line of CONFIG.SYS, or COMMAND.COM if there is no such line. The command shell in turn is responsible for processing the AUTOEXEC.BAT file.
CONFIG.SYS is composed mostly of name=value directives which look like variable assignments. In fact, these will either define some tunable parameters often resulting in reservation of memory, or load files, mostly device drivers and TSRs, into memory.
In DOS, CONFIG.SYS is located in the root directory of the drive from which the system was booted.
Some versions of DOS will probe for alternative filenames taking precedence over the default CONFIG.SYS filename if they exist:
While older versions of Concurrent DOS 3.2 to 4.1 did not support CONFIG.SYS files at all, later versions of Concurrent DOS 386 and Concurrent DOS XM, as well as Multiuser DOS, System Manager and REAL/32 will probe for CCONFIG.SYS (with "C" derived from "Concurrent") instead of CONFIG.SYS. Some versions of Multiuser DOS use a filename of CCONFIG.INI instead, whereas REAL/32 is known to look for MCONFIG.SYS. These operating systems support many additional and different configuration settings (like INIT_INSTALL) not known under MS-DOS/PC DOS, but they are stored in the binary repository named CCONFIG.BIN rather than in CCONFIG.INI. Both files are typically modified through a configuration utility named CONFIG.EXE only.
Under DR DOS 3.31, PalmDOS 1.0, Novell DOS 7, OpenDOS 7.01, and DR-DOS 7.02 and higher, a file named DCONFIG.SYS (with "D" derived from "DR DOS"), if present, will take precedence over CONFIG.SYS. Since DR DOS 6.0 this was used in conjunction with disk compression software, where the original boot drive C: would become drive D: after loading the compression driver (and the "D" in the file name came in handy as well), but it is commonly used to help maintain multiple configuration files in multi-boot scenarios. In addition to this, OpenDOS 7.01 and DR-OpenDOS 7.02 will look for a file named ODCONFIG.SYS, whereas some issues of DR-DOS 7.02 and higher will instead also look for DRCONFIG.SYS. Further, under DR DOS 6.0 and higher, the SYS /DR:ext command can be used to change the default file extensions. For example, with SYS /L /DR:703 the written Volume Boot Record would look for a renamed and modified IBMBIO.703 system file (instead of the default IBMBIO.COM) and the IBMBIO.703 would look for IBMDOS.703 and [D]CONFIG.703 (instead of IBMDOS.COM and [D]CONFIG.SYS), so that multiple parallel sets of files can coexist in the same root directory and be selected via a boot-loader like LOADER, supplied with Multiuser DOS and DR-DOS 7.02/7.03. The SHELL directive is enhanced to provide means to specify alternative AUTOEXEC.BAT files via /P[:filename.ext] and in this specific scenario, COMMAND.COM will accept file extensions other than ".BAT" as well (both features are also supported by 4DOS). Under DR DOS 6.0 and higher, the CONFIG.SYS directive CHAIN=filespec can be used to continue processing in the named file, which does not necessarily need to reside in the root directory of the boot drive. DR-DOS 7.02 and higher optionally support an additional parameter as in CHAIN=filespec,label to jump to a specific :label in the given file. DR-DOS 7.03 and higher support a new SYS /A parameter in order to copy the corresponding CONFIG.SYS and AUTOEXEC.BAT files alongside with the system files.
Ego-Wrappin' (stylised as EGO-WRAPPIN') is a Japanese jazz and rock musical duo, composed of vocalist Yoshie Nakano and guitarist Masaki Mori. The group formed in Osaka in 1996, releasing their debut album Blue Speaker in 1998. The band gained national recognition with their cabaret and kayōkyoku inspired song "Midnight Dejavu (Shikisai no Blues)" (2000).
Ego-Wrappin' was formed in 1996 in Osaka. Originally the band focused their activities in the Kansai region,[1] performing at live houses alongside acts such as Mondo Grosso and Attica Blues. Initially, the group released music through the independent label Metro Crew Records, including their debut extended play Calling Me (1996).
In 1998, the band were featured in the soundtrack for the Eri Fukatsu-starring drama Kirakira Hikaru, covering The Beach Boys' "Disney Girls (1957)". In June of the same year, the band the band released their debut album, the English language Blue Speaker, through independent label RD Records, an Osaka-based subsidiary of Hip Land Music Corp. The album was successful on local Osaka area independent music charts, and was praised by musician Seiichi Yamamoto.
In 1999, the band released two extended plays: their first Japanese language extended play His Choice of Shoes Is Ill! in February, followed by Swing for Joy in November. A song from the extended play, "A Love Song", which featured Osaka ska band Determinations, received strong airplay on regional radio stations such as FM Ishikawa and FM North Wave (Hokkaido). From 2000, the band began performing concerts in Tokyo and other regions of Japan, outside of Kansai.
In 2000, the band came to national attention with their song "Shikisai no Blues", a cabaret and kayōkyoku song written in the style of 1960s jazz singer Mina Aoe. Originally the song was released as a part of the extended play Shikisai no Blues. When it was later released as a stand-alone single/extended play in 2001, it sold over 193,000 copies in Japan.
In May 2001, Ego-Wrappin' established their own sub-label of Toy's Factory called Minor Swing, and released their third album Michishio no Romance. This album, as well as Night Food (2002) and Merry Merry (2004) were commercially successful, all being certified gold by the Recording Industry Association of Japan. Night Food featured the song "Kuchibashi ni Cherry" (2002), which was the theme song of the Nippon TV drama Shiritsu Tantei Hama Mike.
In 2006, Ego-Wrappin' released their fifth album On the Rocks!, and toured Europe for the first time, performing concerts in Denmark and Sweden as a part of the Tokyo Sound Revolution event. During the tour, Ego-Wrappin' formed a support band, The Gossip of Jaxx, who performed during the album's tour. In 2009, the band released Ego-Wrappin' and the Gossip of Jaxx: an album featuring music recorded with this support band. In 2010, the band released Sure Shot, a split single with rock band Brahman.
In 2014, Ego-Wrappin' performed the theme songs for the drama Reverse Edge: Ōkawabata Tanteisha.
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