As the technological capacity is increasing and it becomes more accessible for anyone, the need for larger storage units grows. To make this possible, a large amount of data has to go into a small device. Flash memories are a solution to this problem because they offer the ability to store media collections in a device with the size of a thumb! This requires special techniques of data storage.
Data storage comes in a variety of formats. Each one is essentially prepared for specific tasks. An example of this is the random access memory (RAM), which is used to store the applications that are running on a computer. The RAM is suitable for this task due to its high speed, but not for long term storage because it is cleared when it is not connected to a power source. Flash memory is a subtype of memory called EEPROM (electrically erasable programmable ROM).
Flash memory has a number of attributes that make it suitable for portable data storage. Unlike RAM, flash memory is not erased when the device is turned off. Although other devices that provide this functionality, this have a number of disadvantages. The ROM, or read-only memory, permanently store the data that was infused during the manufacture. This not really helpful for consumers who want to store data at home. Using only a hard disk is not useful, since it requires large amounts of energy, moving parts and is not as portable.
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