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What is a disk?

青灯夜游
青灯夜游Original
2020-07-16 13:19:1612563browse

Disk refers to a memory that uses magnetic recording technology to store data. Disk is the main storage medium of computer. It can store a large amount of binary data and maintain data without loss even after power outage. The main disk formats under Windows include FAT16, FAT32, NTFS, etc. The latest format is exFAT. Different disk formats have different characteristics.

What is a disk?

Disk refers to a memory that uses magnetic recording technology to store data.

Disk is the main storage medium of the computer. It can store a large amount of binary data and can keep the data from being lost even after a power outage. The disk used in early computers was a floppy disk (Floppy Disk, referred to as floppy disk), and the disk commonly used today is a hard disk (Hard disk, referred to as hard disk).

Disk format

The main disk formats under Windows include FAT16, FAT32, NTFS, etc. The latest format is exFAT. Different disk formats have different characteristics. The FAT format is basically no longer used. The formats under Linux are ext series, ext4, ext3, etc.

Extended information

When a U disk exceeding 4GB is formatted, it defaults to the NTFS partition, but this format is very harmful to the U disk because the NTFS partition uses " A "log-style" file system needs to record detailed read and write operations, which will definitely damage the flash disk chip because it requires continuous reading and writing.

Please see the comparison of exFAT, NTFS and FAT partitions below

##Win CE 6/Vista SP1Minimum sectors512bytes512bytes512bytes##Maximum sectorMaximum single fileMaximum formatted capacityNumber of files##exFAT Advantages1. Support for very large files and storage devices
##Partition format
FAT32
NTFS
exFAT
Operating System
After Win 95 OSR2
After Win2000
64KB
64KB
32768KB
2bytes-4GB
Subject to maximum split capacity
16EB (theoretical value)
2TB (but the NT kernel system is limited to 32GB)
2TB~256TB (affected by MBR)
16EB (theoretical value) (supports up to 256TB)
4194304
None
can be at least greater than 1000

2. Support for performance improvements

3. Support for future innovative scalability features

4. Add Flash media compatibility

Disadvantages of exFAT

Windows version requirements are high.

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