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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).
DOS Shell is a file manager that debuted in MS-DOS and PC DOS version 4.0, released in June 1988. It was no longer included in MS-DOS version 6, but remained part of the Supplemental Disk. The Supplemental Disk could be ordered or could be downloaded through Microsoft's FTP server. DOS Shell was retained in PC DOS until PC DOS 2000.
command.com running in a Windows console on Windows 95 (MS-DOS Prompt) COMMAND.COM is the default command-line interpreter for MS-DOS, Windows 95, Windows 98 and Windows Me. In the case of DOS, it is the default user interface as well. It has an additional role as the usual first program run after boot (init process).
MS-DOS Prompt in Windows 95 Command Prompt in Windows 10. All versions of Microsoft Windows have had an MS-DOS or MS-DOS-like command-line interface called MS-DOS Prompt which redirected input to MS-DOS and output from MS-DOS to the MS-DOS Prompt, or, in later versions, Command Prompt.
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.
SYS will also copy the command line shell (COMMAND.COM) into the root directory. [6] The command can be applied to hard drives and floppy disks to repair or create a boot sector. Although an article on Microsoft's website says the SYS command was introduced in MS-DOS version 2.0, [7] this is incorrect.
The command is available in MS-DOS versions 2 (1983) and later. [5] While the ultimate origins of using the three-character string CLS as the command to clear the screen likely predate Microsoft's use, this command was present before its MS-DOS usage, in the embedded ROM BASIC dialects Microsoft wrote for early 8-bit microcomputers (such as TRS-80 Color BASIC), where it served the same purpose.
On MS-DOS, it is available in versions 2 and later. [5] DR DOS 6.0 also includes an implementation of the cd and chdir commands. [6] The command is also available in the open source MS-DOS emulator DOSBox and in the EFI shell. [7] It is named chdir in HP MPE/iX. [8] The command is analogous to the Stratus OpenVOS change_current_dir command. [9]