How does a flash memory work?
Flash memory is a solid-state chip that maintains stored data without any external power source.
Inside the flash chip, data is stored in cells protected by floating gates.
Tunneling electrons change the gate’s electronic charge in “a flash” (hence the name), clearing the cell of its contents so it can be rewritten..
What is special about flash memory?
In addition to being non-volatile, flash memory offers fast read access times, although not as fast as static RAM or ROM. Its mechanical shock resistance helps explain its popularity over hard disks in portable devices.
Why it is called flash memory?
Originally known as simultaneously erasable EEPROM (Electrically Erasable Programmable Read-Only Memory), it earned the nickname “flash” because it could be instantly erased and reprogrammed—as fast as a camera flash.
What is an example of flash memory?
Alternatively referred to as flash storage, flash memory is non-volatile computer memory. … Flash memory is widely used with car radios, cell phones, digital cameras, PDAs, solid-state drives, tablets, and printers. The picture is an example of a MicroSD flash memory card.
What is a disadvantage of flash memory?
Disadvantages: Flash memory cells have a limited number of write and erase cycles before failing. … Smaller size devices, such as flash drives make them easier to lose. Currently costs a lot more per gigabyte than traditional hard drives for large storage capacities.
Do flash drives go bad?
All USB flash drives will eventually go bad because their internal memory chips can only be used a finite number of times. However, the maximum number of read and write instances will likely never be reached on any device in normal use.