HDDs are great for storage devices because they store data efficiently. However, SSDs can be faster than HDDs because they have less moving parts. They also have a much smaller form factor.
A flash memory based SSD uses memory chips that are capable of storing multiple bits of data per cell. SSDs are often referred to as solid-state drives because they don’t have any moving parts like traditional hard drives. An HDD has disks with magnetic platters that store data magnetically. When an HDD writes data to a disk, it flips the platters upside down.
These platters have tiny magnets on the surface that contain a specific polarity. To write data, the Hdd destroyer sends a current through the platters causing the magnetic fields to change.
When this happens, the polarity of the magnets changes. Once the write operation is finished, the HDD sends a current through the platters flipping them back over. As a result, the magnetism is changed and the data is stored. SSDs use flash memory cells instead of magnetic platters. Each cell stores a single bit of data.
Flash memory works similarly to a capacitor, with one side of the cell being positively charged and the other side being negatively charged. A voltage is sent across the capacitor and this voltage changes depending on whether the cell contains a 1 or a 0.
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