Get flash to fully experience Pearltrees
In the personal computer operating systems MS-DOS and PC DOS , a number of standard system commands were provided for common tasks such as listing files on a disk or moving files. Some commands were built into the command interpreter, others existed as external commands on disk. Over the several generations of DOS, commands were added for the additional functions of the operating system. In the current Microsoft Windows operating system a text-mode command prompt window can still be used. Command processing
One of the many changes in Mac OS X Lion was the hiding of the Library Folder under your user account. Apple had good reason to do this given than many of the settings and file information are stored in the Library directory. Given the huge increase of Mac users out there, keeping the folder hidden makes for a safer user experience.