Whether we are using computers, mobile phones, cameras and other devices with data access function, we can basically perform low-level formatting. Many kids don't know what the low-level format is, and what's the difference between the high-level format we've seen before. This article will learn the difference between low-level formatting and high-level formatting.
1、 Low level formatting
1. Low level formatting is to divide a blank disk into cylinders and tracks, and then divide the tracks into several sectors. Each sector is divided into ID, gap, data, etc.
2. Low level formatting is a task before advanced formatting, and low level formatting can only target one hard disk and cannot support a separate partition.
3. Each hard disk has been low-level formatted by the hard disk manufacturer when it leaves the factory, so users usually do not need to perform low-level formatting operations.
4. Low level formatting is a lossy operation, which has a certain negative impact on the life of the hard disk.
2、 Advanced formatting
1. Advanced formatting is to mark the disk according to a certain partition format, generate boot area information, initialize space allocation table, mark logical badlines, verify data, etc
2. Enable the operating system to read and write the disk, so the advanced formatting method varies with the operating system, or the partition format.
3. Advanced formatting is just an ordinary read/write operation on the disk, and has no adverse effect on the hard disk.
Specific differences between low-level formatting and advanced formatting
3、 Different references
1. Low level format: used to refer to the operation of dividing a disk into cylinders, tracks, and sectors.
2. Advanced format: also known as logical format, it refers to writing specific data in specific areas of the disk according to the file system selected by the user (such as FAT12, FAT16, FAT32, NTFS, EXT2, EXT3, etc.).
4、 Different characteristics
1. Low level format: The low-level format of a floppy disk is usually supported by the system. Generally, the format operation of a floppy disk includes two parts: low-level format operation and advanced format operation.
2. Advanced format: an operation that initializes the disk or disk partition and clears all files in the original disk or disk partition.
5、 Different functions
1. Low level format: the operation of creating a hard disk sector so that the hard disk has storage capacity.
2. Advanced format: including rewriting the corresponding area of the partition table in the master boot record, according to the file system selected by the user
A disk space for file management, such as file allocation tables and directory tables, is set aside in the partition so that users can use the partition to manage files.
