Memory — WSU

Memory — WSU - Memory - WSU

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Memory Computer memory comes in four different forms: EEPROM - An Electrically Erasable Programmable Read-Only Memory (EEPROM, sometimes called flash memory) chip is an integrated circuit that is temporarily charged with the memory contents that the programmer wanted it to contain. This type of chip can be erased with a command from a scan-tool and reprogrammed with updated factory programming. EEPROM chips contain vehicle-specific instructions and specifications such as: engine size, transmission type, tire size, gear ratios, etc. . Since 1996, automobiles made for sale in the United States contain EEPROM memory. The huge advantage to EEPROM memory is the ability to reprogram the vehicle's computers without changing any parts. The programming process is quick and easy to perform with a scan tool. The contents of this type of memory (non-volatile memory) will be retained with all power lost to the memory chip. The following photograph is of a flash memory chip inside a GM Powertrain Control Module (PCM).
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This note was uploaded on 02/06/2012 for the course AUSV 1320 taught by Professor Johnkelly during the Winter '12 term at Weber.

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