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Choice was introduced as an external command with MS-DOS 6.0; [1] [2] Novell DOS 7 [3] and PC DOS 7.0. Earlier versions of DR-DOS supported this function with the built-in switch command (for numeric choices) or by beginning a command with a question mark. [3] This command was formerly called ync (yes-no-cancel).
MS-DOS / PC DOS and some related disk operating systems use the files mentioned here. System Files: [1] IO.SYS (or IBMBIO.COM): This contains the system initialization code and builtin device drivers; MSDOS.SYS (or IBMDOS.COM): This contains the DOS kernel. Command-line interpreter (Shell): COMMAND.COM: This is the command interpreter.
The command produces summary output of hardware/software operating environment parameters. [2] The detailed configuration information about the computer and its operating system includes data on the operating system configuration, security information, product ID, and hardware properties, such as RAM, disk space, and network cards. [3]
The command session permits running various supported command-line utilities from Win32, MS-DOS, OS/2 1.x and POSIX. The emulators for MS-DOS, OS/2 and POSIX use the host's window in the same way that Win16 applications use the Win32 explorer. Using the host's window allows one to pipe output between emulations.
The category Internal DOS commands deals with articles about DOS commands built into the command processor (COMMAND.COM, 4DOS.COM, NDOS.COM, DOSPLUS.COM, ...
Finally MS-DOS 7.1 (the DOS component of Windows 9x) added support for FAT32 which used 32-bit allocation entries and could support hard drives up to 137 GiB and beyond. Starting with DOS 3.1, file redirector support was added to DOS. This was initially used to support networking but was later used to support CD-ROM drives with MSCDEX. IBM PC ...
COMMAND.COM is the command-line interpreter of MS-DOS, IBM PC DOS, and clones such as DR-DOS, SISNE plus, PTS-DOS, ROM-DOS, and FreeDOS. Windows Resource Kit and Windows Services for UNIX include Korn and the Bourne shells along with a Perl interpreter (Services for UNIX contains ActiveState ActivePerl in later versions and Interix for versions ...
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's DOS BIOS (typically residing in IBMBIO.COM or IO.SYS) during boot.