Hard disks, solid state drives, and even high-density optical disks have long supplanted magnetic tape cassettes. But contrary to popular belief, tapes are not dead. They are still used today for long-term storage and archiving of data.
Moreover, some high-tech companies are even developing in this area. For example, Sony was able to create a new magnetic tape from which cassettes can be made with an astounding capacity - 185 terabytes of data. To properly represent this amount of information, we will help you: this equals approximately 3700 Blu-ray discs.
To achieve this storage density, Sony used a new spray technology to apply nanometer-sized magnetic particles to a soft polymer layer. These particles are much smaller than in conventional cassettes. Their small size already provided an improved capacity for the resulting material, and a special application method allowed them to be arranged in a specific order instead of randomly distributing them.
These are the cassettes that many of us remember.
When will we be able to see these bottomless Sony cassettes at home? Probably never. As we discussed earlier, magnetic tapes are now used only for archiving large amounts of information in data centers. Ordinary people don't use cassettes anymore.