Below given is a file system layout in a typical operating system:
Components of the file system layout: MBR, partition table, partitions, boot block, super block, free block, i-nodes, files and directories.
MBR (Master Boot Record) is the sector 0 in disk which is used for booting the computer. Disk is divided in to a number of partitions as per the requirements. There is a partition table which has information about the active partitions. When computer is booted, MBR locates an active partition and executes the boot block. Then, operating system is loaded in the partition. A partition table has the following components: boot block, super block, free block, i-nodes,, files and directories. Super block contains important information about file system. Free blocks are used for managing the free space in the partition. I-nodes is an array of data structures having information about a file. Files and directories have all the remaining files and directories of the file system.