Definitions for "File Control Block"
Keywords:  fcb, temporarily, block, bytes, pointer
A fixed-length data structure, contained in the file-control-block buffer, where information about an access path to a file is stored.
Structure used for accessing files on disk. Contains the drive, filename, filetype, and other information describing a file to be accessed or created on the disk. A file control block consists of 36 consecutive bytes specified by the user for file I/O functions. FCB can also refer to a directory element in the directory portion of the allocated disk space. These contain the same first 32 bytes of the FCB, but lack the current record and random record number bytes.
A small block of memory temporarily assigned by a computer's operating system to hold information about an opened file.