MS-DOS 4.01

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MS-DOS 4.01
Version of MS-DOS
Placeholder.png
Version4.01
Codename
Preliminary name
Latest build
Release date1988-11
Support end
Replaces
MS-DOS 4.00
Replaced by
MS-DOS 4.01a

MS-DOS 4.01 is a version of MS-DOS, released in 1988-11. It introduced the following new features and changes:

  • Support for EGA and VGA display adapters.
  • Support for FAT16 partitions larger than 32 MB.
  • Support for LIM / EMS standard (driver EMM386.SYS, access to additional memory on IBM PC AT-386 and higher), which allowed individual parts of MS DOS to load into additional memory.
  • Full-fledged support of the Russian language.
  • Improving the Select installation program. The process of installation and configuration ois greatly simplified. It automatically creates the appropriate CONFIG.SYS and AUTOEXEC.BAT files.
  • The introduction of a new MEM command, which allows you to analyze the current memory configuration.
  • Four countries are included in the list of supported countries.
  • Graphic printing.
  • Various new features in existing commands: TREE, DELETE, MODE, APPEND, FASTOPEN, NLSPUNC, ATTRIB, FDISK, REPLACE, BACKUP, GRAFTABL, SELECT, COUNTRY, GRAPHICS.
  • Improved system drivers, including: ANSI.SYS, DRIVER.SYS, DISPLAY.SYS, PRINTER.SYS.
  • MS-DOS shell.