What Are the Different Types of Digital Storage?

Digital Data Storage (DDS) is a magnetic tape often called DAT (Digital Audio Tape). Earlier, this tape was used to store music, but later it was used to store computer data.

Digital data storage

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Digital Data Storage (DDS) is a magnetic tape often called DAT (Digital Audio Tape). Earlier, this tape was used to store music, but later it was used to store computer data.

Digital Data Storage (DDS) is a magnetic tape often called DAT (Digital Audio Tape). Earlier, this tape was used to store music, but later it was used to store computer data.

As for DDS3, it is the so-called third-generation DDS standard. It was drafted by the DDS Manufacturers Group as early as 1992, and the full version was not developed until 1995. Its capacity can reach 12GB when a single volume is uncompressed. Compared with the previous generation DDS2, which has an uncompressed capacity of 4GB, it has improved three times, and the transmission rate is 1MB per second. 8mm refers to a computer storage device with a tape width of 8mm. This type of device uses a Helical Scan head to make read and write records. Taking Mammoth as an example, its read and write head rotates at a high speed of 5660 revolutions per minute, so when reading and writing, it can transfer data at a transfer rate of 3MB per second. Its magnetic tape also uses the latest magnetic coating technology, which is the so-called AME Advanced Metal Evaporated technology. The uncompressed capacity of a single roll can be as high as 20GB. In addition, there is a new 8mm technology called AIT (Advanced Intelligent Tape), which combines AME technology, plus a data format similar to DDS, and improves it. This makes AIT's single-volume uncompressed capacity up to 25GB and transfer rates up to 3MB per second.

DDS-1: Can store 2GB of uncompressed data on a 120-minute disk; DDS-2: Store 8GB of data on a 120-minute disk in a compressed format, so DDS-2 is suitable for small network servers ; DDS-3: It can store 24GB of compressed data on a 125-minute disk, which is ideal for medium-sized network servers. DDS-3 uses the hard disk maximum similarity technology, which can effectively remove the impact of electronic noise on data; DDS-4: 40GB compressed data stored on a 125-minute disk, which is ideal for small and medium business network servers. ^[1]