Flash memory is made up of transistors capable of maintaining the state of the cells even without power.
There are two different technologies:
SLC (Single Level Cell): one bit of storage per cell
MLC (Multiple Level Cell): up to four bits per cell
Flash memory is used in USB flash drives, SD cards, and SSDs. SLC technology is more expensive but should provide better reliability and longevity.
Similar to a hard drive in terms of its operating principle, flash memory uses no mechanical components and is therefore more resistant to shocks. Its lifespan is limited by the number of write cycles (about 10,000 for MLC and 100,000 for SLC). The price per GB is also higher.
Flash memory is a widely used storage technology found in devices such as USB drives, SD cards, and SSDs. Its main advantages are its high transfer speeds, resistance to physical shocks, and compact size, since it does not rely on mechanical components.
However, its lifespan is limited by the number of write cycles each memory cell can endure, and its cost per gigabyte is generally higher than that of traditional hard drives.
Despite these limitations, flash memory remains a reliable and practical solution for fast and portable data storage, especially with higher-quality technologies such as SLC that offer improved durability and reliability.
Longevity and reliability
Accessibility and practicality
Transfer speed
Security
Price/GB