9). In the case of K + and Cl - , the electrical and concentration gradients of molecules work against each other. K + is attracted toward the inside of a cell because of the inside-negative membrane potential, but the moleculeâs concentration gradient works in the other direction.
Directory Definition. The term directory is used in a computer software context to refer to what appears to the user to be a container or folder1 that can hold files and other directories. A file is a named collection of related data that appears to the user as a single, contiguous block of information and that is retained in storage.
You can think of a directory as a file cabinet that contains folders that contain files. Many graphical user interfaces use the term folder instead of directory. Computer manuals often describe directories and file structures in terms of an inverted tree.nder DOS and Windows, the root directory is a back slash (\). To read information from, or write information into, a directory, you must use an operating system command. You cannot directly edit directory files. For example, the DIR command in DOS reads a directory file and displays its contents.