Because of the love for DOS, I sorted out this thing about configuring CONFIG.SYS. Maybe some friends have never used DOS, but out of curiosity about DOS, they installed the DOS system, so just explain it like this.
Declaration: The author assumes that the reader has certain DOS experience. At least, you know what DOS is
When DOS starts, it requires multiple programs. Among these programs, an important program is CONFIG.SYS. The strange thing is that CONFIG.SYS is neither an executable file nor a DOS file. It is a text file. You can and must edit it. Think carefully that "editing" may not be the most appropriate word. We must work hard for CONFIG.SYS. In fact, the configuration file can make the computer play better potential. A bad CONFIG.SYS file means bad computer work efficiency, and a good configuration file means that the user must be a Microsoft environment programmer or a DOS expert ^_^
One convenient thing about the CONFIG.SYS file is that once you understand how to do it and how to avoid and eliminate some small troubles, you don't need to bother it until you add a certain software or hardware device to the system. Before determining CONFIG.SYS, we encounter hardships and troubles. When such a moment comes, you may as well take a look at this post casually.
Overview:
Compared with WINDOWS 9X, 2K, XP, we must face the fact that DOS' way of knowing how to use the computer is very stupid. When DOS starts to work, it must find a configuration file named CONFIG.SYS on the disk and take out the correct information from it. The configuration file includes a series of commands we call "configuration commands", which tell DOS how to bootstrap, how to use memory, and how to exchange information with various hardware devices configured in the system. If you don't tell it, then sorry, it won't let you use it.
· The name of CONFIG.SYS comes from configuring the system, and its purpose is to make DOS and the computer work better in coordination
Functions of CONFIG.SYS:
CONFIG.SYS mainly completes two aspects of work:
First, CONFIG.SYS gives DOS information on how to carry out work. Most of the information is for the disk drive program. For example, how many disk drives are there in total, how much buffer does DOS allocate for the disk drive, (DOS will not automatically handle these things. Even the latest WINXP needs to install the motherboard driver. Most patches in the motherboard driver are to make the system support DMA66/100 and so on)
Second, the configuration file tells DOS and the computer software which interesting devices are configured. For example, a sound card, CD-ROM, USB flash drive, network device, scanner, or any other interesting device. The configuration file tells DSO and application programs that these devices can be used. This may be the most important (and most headache-inducing) part of CONFIG.SYS.
· Key points of CONFGIS.SYS
DOS has some special regulations and rules for CONFIG.SYS, as follows in sequence:
⊙ CONFIG.SYS must be on the root directory of your boot disk and named CONFIG.SYS
⊙ CONFIG.SYS is a pure text file
⊙ There are more than 20 configuration commands in total, which vary according to the version of DOS. This article defaults to DOS6.XX and above
⊙ But you don't need to memorize these entries by heart
⊙ Empty lines are allowed in CONFIG.SYS
⊙ Some programs install or start up will change the configuration file CONFIG.SYS, and some programs even do it without your permission. Although some changes are beneficial to your system, still, you should pay attention, especially after you install a program and the system is abnormal, then see if CONFIG.SYS has changed.
· Browsing the configuration file
The best way to browse the configuration file is to use an editor, such as DOS Editor.
1. Enter the following command under DOS:

2. After EDIT runs, it is as follows:

If the configuration file is too large, you can use PgDn to turn pages in DOS Editor to see its full picture.
If there is no CONFIG.SYS file on the computer, create this file. The content can be as follows like the above example
DEVICE=C:\DOS\HIMEM.SYS
DOS=HIGH
FILES=20
BUFFERS=15
LASTDRIVE=Z
The next section, let's see the errors in CONFIG.SYS.
〖To be continue〗
Declaration: The author assumes that the reader has certain DOS experience. At least, you know what DOS is
When DOS starts, it requires multiple programs. Among these programs, an important program is CONFIG.SYS. The strange thing is that CONFIG.SYS is neither an executable file nor a DOS file. It is a text file. You can and must edit it. Think carefully that "editing" may not be the most appropriate word. We must work hard for CONFIG.SYS. In fact, the configuration file can make the computer play better potential. A bad CONFIG.SYS file means bad computer work efficiency, and a good configuration file means that the user must be a Microsoft environment programmer or a DOS expert ^_^
One convenient thing about the CONFIG.SYS file is that once you understand how to do it and how to avoid and eliminate some small troubles, you don't need to bother it until you add a certain software or hardware device to the system. Before determining CONFIG.SYS, we encounter hardships and troubles. When such a moment comes, you may as well take a look at this post casually.
Overview:
Compared with WINDOWS 9X, 2K, XP, we must face the fact that DOS' way of knowing how to use the computer is very stupid. When DOS starts to work, it must find a configuration file named CONFIG.SYS on the disk and take out the correct information from it. The configuration file includes a series of commands we call "configuration commands", which tell DOS how to bootstrap, how to use memory, and how to exchange information with various hardware devices configured in the system. If you don't tell it, then sorry, it won't let you use it.
· The name of CONFIG.SYS comes from configuring the system, and its purpose is to make DOS and the computer work better in coordination
Functions of CONFIG.SYS:
CONFIG.SYS mainly completes two aspects of work:
First, CONFIG.SYS gives DOS information on how to carry out work. Most of the information is for the disk drive program. For example, how many disk drives are there in total, how much buffer does DOS allocate for the disk drive, (DOS will not automatically handle these things. Even the latest WINXP needs to install the motherboard driver. Most patches in the motherboard driver are to make the system support DMA66/100 and so on)
Second, the configuration file tells DOS and the computer software which interesting devices are configured. For example, a sound card, CD-ROM, USB flash drive, network device, scanner, or any other interesting device. The configuration file tells DSO and application programs that these devices can be used. This may be the most important (and most headache-inducing) part of CONFIG.SYS.
· Key points of CONFGIS.SYS
DOS has some special regulations and rules for CONFIG.SYS, as follows in sequence:
⊙ CONFIG.SYS must be on the root directory of your boot disk and named CONFIG.SYS
⊙ CONFIG.SYS is a pure text file
⊙ There are more than 20 configuration commands in total, which vary according to the version of DOS. This article defaults to DOS6.XX and above
⊙ But you don't need to memorize these entries by heart
⊙ Empty lines are allowed in CONFIG.SYS
⊙ Some programs install or start up will change the configuration file CONFIG.SYS, and some programs even do it without your permission. Although some changes are beneficial to your system, still, you should pay attention, especially after you install a program and the system is abnormal, then see if CONFIG.SYS has changed.
· Browsing the configuration file
The best way to browse the configuration file is to use an editor, such as DOS Editor.
1. Enter the following command under DOS:

2. After EDIT runs, it is as follows:

If the configuration file is too large, you can use PgDn to turn pages in DOS Editor to see its full picture.
If there is no CONFIG.SYS file on the computer, create this file. The content can be as follows like the above example
DEVICE=C:\DOS\HIMEM.SYS
DOS=HIGH
FILES=20
BUFFERS=15
LASTDRIVE=Z
The next section, let's see the errors in CONFIG.SYS.
〖To be continue〗






