What Is Usb Flash Memory?
Flash memory is a sort of solid state memory with no moving parts and USB flash memory is the memory stored and transferred through a USB drive. It is a form of Electrically Erasable Programmable Read-Only Memory (EEPROM), whose greatest advantage is the erasability of data stored. The modified version of EEPROM in USB Pen Drive rectifies the problem of lesser speed of the older version, made possible through the technology of erasing files as fields. Before, the EEPROM of the Personal Computers were so slow in performance in that re-writing requires the erasure of the entire field that consumed pretty lot of time. But now, the total erasure regions are broken down into several erasable fields or blocks and re-writing requires erasure of any such field, while the rest remains untouched. This property came into existence due to the recent developments in microprocessor technology, thanks to the expert hardware designers who worked for it. The serial access rather than the parallel one made storage faster and better requiring lesser electrical connections giving way to manufacture of USB drives of gigabytes capacity at a swift pace. Though lacking movable parts, it still retains the term ‘drive’ only because the basic principle of working is the same as that of disk drives.
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