| Subject | English | Arabic |
| comp., MS | map control block | كتلة تحكم المخطط (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) |
| comp., MS | volume map control block | كتلة التحكم في التعيين لوحدة التخزين (An opaque structure that stores virtual block number (VBN) to logical block number (LBN) mappings for an a volume file of a file system) |