Consider reading a file from disk for a process: Determine device holding file Translate name to devise representation Physically read data from disk into the buffer Make data available to…
The kernel provides many services related to I/O. Several services (i.e. scheduling, buffering, caching, spooling, device reservation and error handling) are provided by the kernel's I/O subsystem and build on…
Disk Management The operating system is responsible for several aspects of disk management. Disk Formatting A new magnetic disk is a blank slate. It is just platters of a magnetic…
Disk Structure The magnetic disk provides the bulk of secondary storage for modern computer systems. Each disk platter has a flat circular shape, like a CD. Common platter diameters range…
A directory is an object that contains the names of file system objects. The file system allows users to organize files and other file system objects through the use of…
File Access Methods When a file is used, this information must be accessed and read into computer memory. The information in the file can be accessed in several ways. There…
Types of File:- Types of the file, The files are classified into different categories as follows: The name is split into two parts-a names and an extension, The system uses…
The operating system can provide system calls to create, write, read, reposition, delete, and truncate files. The file operations are described as followed: File Operation:- Creating a file: Two steps…
File System:- The file system provides the mechanism for online storage of and access to both data and programs of the operating system and all the users of the computer…
The system spends most of its time shuttling pages between main memory and secondary memory due to frequent page faults. This behavior is known as thrashing. A process is thrashing…
Frame When a page fault occurs, there is a free frame available to store a new page into a frame. While the page swap is taking place, a replacement can…
Page Replacement Algorithm:- The page replacement is a mechanism that loads a page from disc to memory when a page of memory needs to be allocated. Page replacement can be…