data blocks described above: for disks, the
all of this data is accessed
defined in the
disk such as a pointer to the
Also contained in
on the disk, the number cf records on the disk.
Each open file is represented in storage by an active file table (AFT).
The AFT (defined by the
information as the address of the first chain link for the file, the
current chain link for the file, the address of the current data block,
the fileid information for the file. Figure 1 shows the relationship
between the
conjunction with
the tables
list below shows the logical flow of the main function of