| Dutch | English |
| Command Control Block | command control block (A specifically formatted information set used in the IBM Token Ring environment that is transmitted from the application program to the adapter support software to request an operation) |
| Context Control Block | context control block (An internal file system structure in which a file system maintains the per-file object state for an open instance of a file) |
| Map Control Block | map control block (A structure that file systems use to map the virtual block numbers (VBNs) for a file to the corresponding logical block numbers (LBNs) on the disk) |
