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Memory information page (5493 words) |
 | Memory cells are etched onto a silicon wafer in an array of columns (bitlines) and rows (wordlines). |
| Flash memory is a type of EEPROM that uses in-circuit wiring to erase by applying an electrical field to the entire chip or to predetermined sections of the chip called blocks. |
| A ferroelectric memory cell consists of a ferroelectric capacitor and a (metal oxide semiconductor) MOS transistor. |
| non-volatile memory: Information from Answers.com (1140 words) |
| Non-volatile memory is typically used for the task of secondary storage, or long-term persistent storage. |
| One of the earliest forms of non-volatile read-only memory, the mask-programmed ROM was prewired at the design stage to contain specific data; once the mask was used to manufacture the integrated circuits, the data was cast in stone (or at least in silicon) and could not be changed. |
| This is a volatile memory chip (which loses its data if power is removed) to which a battery has been added in order to preserve the contents in the absence of external power. |
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