Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Logical File System
Responsible for providing the before discussed interface to the user including:
At the initial level device drivers communicate directly with the peripherals or their controllers or channels. A device driver is accountable for starting I/O operations on a device and processing the completion of an I/O request. For file operations the usual devices controlled are disk and tape drives. Device drivers are generally considered to be part of the operating system.
The next to initial level is referred to as the basic file system or the physical I/O level. This is the foremost interface with the environment outside of the computer system. The-basic I/O administrator is responsible for all file I/O initiation and termination. At this level control structures are sustain that deal with device I/O scheduling, and file status. The basic I/O administrator is apprehension with the selection of the device on which file I/O is to be performed on the basis of which file has been selected. It is as well concerned with scheduling disk and tape accesses to optimize performance.
Logical I/O makes possible users and applications to access records. Therefore whereas the basic file system deals with blocks of data the logical I/O module deals with file records. Logical I/O supplies a general-purpose record I/O capability and maintains basic data about files.
The level of the file system contiguous to the user is often termed the access method it provides a standard interface between applications and the file systems and devices that hold the data. Different access methods replicate different file structures and different ways of accessing and processing the data.
Suppose your process starts up, and allocates some memory with malloc(). The allocator will then give part of a memory page to your process. The OS then updates the corresponding p
why some companies do not pay sufficient attention to staff induction
How could we implement locks? No matter how we choose to implement them, we must have some hardware support. One possibility for implementing locks on a uniprocessor machine is is
Case laws related to accounting for investment
what are reasons for cooperating processes
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
OPERATING SYSTEM 1. Describe the term operating system. Write down the functions of operating system. 2. Explain Thread? Write down the advantages and disadvantages of threa
Indexed allocation Indexed allocation bringing all the pointers together into one location: the index block. Every file has its own index block, which is an array of disk-block
Making the Transition to Client - Server Programming Making the transition to client - server programming is a significant effort. Client - server applications must be designed
Explain briefly the working of semaphore with example ? The E.W. Dijkstra (1965) abstracted the key idea of mutual exclusion in his concepts of semaphores. Definition A s
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd