the right place on the hard disk has to be found, then the read/write head must be placed there, then the sector (a small part of the hard disk) is read or written, if it's read, the data is moved into the memory, maybe by the DMA (Direct Memory Access) Controller. Is it's a write operation, the data must first be given to the Hard Disc Controller.
you can not format a disk without losing the data, so back up all of your data elsewhere before formatting.
in the form of 0s nd 1s
Formatted
on pressing enter
sector
Removing unnecessary data from your hard drive allows the free space and remaining data to be defragmented more efficiently - there is not a lot of point in re-organising temporary/trash data. Removing the data after defragmentation will leave disparate 'holes' of free space amid the existing data, which can lead to further fragmentation when new data is written to the storage device.
Dirty pages refer to pages in computer memory that have been modified since being read from disk. These pages need to be written back to disk before the data is considered saved or up-to-date. It is important for managing memory and ensuring data consistency.
Yes, data is written to and read from a floppy disk using a magnetic read/write head that interacts with the magnetic coating on the disk. When writing data, the magnetic head aligns the magnetic particles on the disk surface to represent the information. When reading data, the head detects the magnetic orientation of the particles to retrieve the stored information.
Once you format, any data on disk is gone.
Disk mirroring in RAID (Redundant Array of Independent Disks) refers to the process of duplicating data across multiple hard drives to enhance data redundancy and availability. In this setup, each piece of data written to one disk is simultaneously written to another, ensuring that if one disk fails, the data remains accessible from the mirrored disk. This is commonly implemented in RAID 1 configurations, where two identical drives are used. The primary advantage is increased data protection, though it requires double the storage capacity for the mirrored data.
The process of marking tracks and sectors to prepare the disk to receive data is called formatting. During formatting, the disk is organized and divided into individual storage units that can be written and read by the computer's operating system. This prepares the disk for storing files and other data.
Formatting a disk that contains files of data can result in total data loss. Unless you have backed up all the data from a drive (if possible), do not format unless you are prepared to lose everything including your operating system, which you will then need to reinstall.