What is CONFIG.SYS Configuration file?
CONFIG.SYS is a configuration file on DOS systems. It is a text file that contains the settings and commands for mounting drives in a DOS system. This is a primary configuration file for OS / 2 and DOS OS. This file was introduced in DOS and is replaced with CONFIG.NT for 32-bit versions of Windows.
The CONFIG.SYS file is read every time a DOS system is started. The system then reads this file and runs the following command. Users can easily make changes according to their needs by simply saving changes to the CONFIG.SYS file. Since it is a text file, it can be edited in any editing program. This file is located in the root directory of the drive. This is the same place where the system will start.
The most common commands in the CONFIG.SYS file include:
BUFFERS = This command is used to specify the buffer size.
FILES = This command is used to determine the number of files a user can open at one time.