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Why doesn't the computer have an ab disk?
There is an AB disk in the computer.

There was no hard disk in the early days of computers, and then data storage mainly depended on floppy disks. Floppy drives are divided into 3.5-inch and 5-inch, and two different types of disks are placed. In order to facilitate the use and management, in general, the 3.5-inch floppy drive is disk A and the 5-inch floppy drive is disk B.

Floppy disk drives occupy the positions of letters A and B in turn. Later, with the application of hard disk, the letters after C disk can only be occupied in sequence.

And our computer doesn't have a floppy drive now, so there is no AB disk.

Extended data:

With the widespread use of 3.5-inch floppy disks, 5.25-inch floppy disks have been eliminated because of their large size, small capacity and easy wear, and 3.5-inch floppy disks have become the mainstream of floppy disks. So by the end of 1990s, disk B had become history.

Later, with the popularity of erasable optical disks and recorders, as well as the widespread use of U-disks (flash disks) and mobile hard disks, disk A gradually left us. With the discontinuation of 3.5-inch floppy disks and floppy drives, today's computers are often no longer equipped with floppy drives, and disk A has been eliminated.

As a hard drive letter, drive C still defends its position.

For disk A and disk B, there is only one sentence: Have a good trip. I won't forget your past glory.

References:

Baidu encyclopedia-disk a

Baidu encyclopedia -B disk