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This video is about the concept of efficiency and performance. It also discusses about I/O using unified buffer cache and with double caching concept.

This video is about the concept of free space management performed by operating system in order to manage free space list which store the information about the free blocks on the disk as well as when a file is deleted the free space has to be added to the free space list. The free space can be managed by using 1. Bit vector or Bit map 2. Linked list 3. Grouping 4. Counting.

This video is about the concept of File allocation methods. It is the techniques in which the files can be allocated space on the hard disk using Contiguous allocation(continuous blocks of data should be allocated to a file), Linked list allocation( linked list is used and file is allocated space in non contiguous fashion, as pointer of one data block points to the address of next block and so ...

This video is about the concept of Directory implementation using linear list and hash tables.

This video is about the concept of partition on disk like raw and cooked partitions also about boot block and root partition. Virtual file system which acts as an interface between user and different type of file systems so that user can access files stored across different file system on different locations easily.

This video is about file system implementation describing the : On- disk structures and In- memory structures. On disk structures include: boot control block, volume control block, directory structure, file control block. In-memory structures include: in memory mount table, in memory directory structure, system wide open file table, per process open file table, buffer hold file system.

This video is about the concept of layered file system . The layered filesystem has different layers or levels, where each level in the design uses features of lower level to create new features for use by higher levels. The topmost level is Application program, Logical file system, File organization module, Basic file system, I/O Control and lowest layer is Devices. The functionality of each l...

This video is about the concept of file sharing. The file sharing can be done in multi-user system using password protection, categories the users as owner, group and others. Remote file system in which the files are shared among the systems in the network can be implemented using client server model. Client server can be implemented using NFS (Network File System), CIFS (Common Internet File S...

This video is about the concept of file mounting. The operating system makes the files and directories stored on storage devices available for users to access via the computers file system. It also discusses about the concept of unmounting the files.

This video is about the types of directory structures like : 1. Single level directory structure 2. Two level directory structure 3. Tree structured directory 4. Acyclic graph directory structure 5. General graph directory structure.

This video is about the concept of directory. It also focuses about the operation on directory and the fields in directory structure.

This video is about the different types of file access methods like: 1. Sequential access( record by record access of file). 2. Direct access(Relative or random access ,file can be accessed randomly by block number). 3. Indexed sequential( it uses indexes to access files).

This video is about the different types of file organization such as Pile organization, Sequential organization, Indexed sequential organization, Indexed file organization, Direct or hashed organization. Also discusses about file, record, field and database.

This video is about the types of files such as ordinary files, directory files and special files. Also it discusses the structure of file like simple record structure, complex structure and no definite structure.

Operating system- FILE ATTRIBUTES & OPERATIONS

Operating System- Interprocess Communication model

Operating System- Producer Consumer problem solution using semaphore

Operating System- Reader Writer Problem

Operating system- Sleeping Barber Problem

Operating system- Dining Philosopher problem

Operating system- MONITOR programming language support type solution

Operating system- TEST & SET Operations Hardware type solution

Operating System- Counting semaphore and binary semaphore

Operating system- Peterson's solution

Operating system- Strict alternation or Dekkers solution

Operating system-Types of Critical section problem solutions-LOCK variable

Operating System- Producer Consumer Problem

Operating system- CRITICAL SECTION PROBLEM & REQUIREMENTS

Operating System- Concurrent processes & Race condition