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.
A directory or folder is nothing more than a location on a disk used for storing information about files. With DOS 2.x, IBM/Microsoft introduced multiple directories on a single disk. In effect, this let you sort your files into groups and place each related group into its own directory.f, instead of data, you created a file that pointed to other files on the disk, you will have built what amounts to a subdirectory. If you look at a complete file name you see something like: C:\Program Files\Database\DBASE.EXE (or whatever). The root directory is the C:\ part.