The mem command shows information about used and free memory areas and programs that are currently loaded into memory in the MS-DOS subsystem.
The mem command is not available in 64-bit versions of Windows 7.
MkdirThe mkdir command is used to create a new folder.
MklinkThe mklink command is used to create a symbolic link.
ModeThe mode command is used to configure system devices, most often COM and LPT ports.
MoreThe more command is used to display the information contained in a text file. The more command can also be used to paginate the results of any other Command Prompt command.
The mount command is used to mount Network File System (NFS) network shares.
The mount command is not available by default in Windows 7 but can be enabled by turning on the Services for NFS Windows feature from Programs and Features in Control Panel.