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In an EEPROM that is frequently reprogrammed, the life of the EEPROM is an important design consideration. Flash memory is a type of EEPROM designed for high speed and high density, at the expense of large erase blocks (typically 512 bytes or larger) and limited number of write cycles (often 10,000). There is no clear boundary dividing the two ...
NSS—Network Security Services; NSS—Name Service Switch; NT—New Technology; NTFS—NT Filesystem; NTLM—NT Lan Manager; NTP—Network Time Protocol; NUMA—Non-Uniform Memory Access; NURBS—Non-Uniform Rational B-Spline; NVR—Network Video Recorder; NVRAM—Non-Volatile Random-Access Memory
Network-attached storage Hardware / Storage Computer data storage: NAT: Network Address Translation Internet Layer Cisco Internet Protocol Journal: A look Inside Network Address Translators: NBMA: Non-Broadcast Multiple Access (e.g. Frame Relay ATM) Telecom See ATM, Frame Relay and X.25, for examples. NIC: Network Interface Card Physical layer ...
Electrically erasable programmable read-only memory (EEPROM) is based on a similar semiconductor structure to EPROM, but allows its entire contents (or selected banks) to be electrically erased, then rewritten electrically, so that they need not be removed from the computer (whether general-purpose or an embedded computer in a camera, MP3 ...
EEPROM: electrically erasable programmable read-only memory technology. Can be erased, even in plastic packages. Some but not all EEPROM devices can be in-system programmed. CMOS. Flash: flash-erase EPROM technology. Can be erased, even in plastic packages. Some but not all flash devices can be in-system programmed.
However, OTP EPROM (whether separate or part of a larger chip) is being increasingly replaced by EEPROM for small sizes, where the cell cost isn't too important, and flash for larger sizes. A programmed EPROM retains its data for a minimum of ten to twenty years, [ 9 ] with many still retaining data after 35 or more years, and can be read an ...
An extension ROM could in principle contain operating system, or it could implement an entirely different boot process such as network booting. Operation of an IBM-compatible computer system can be completely changed by removing or inserting an adapter card (or a ROM chip) that contains a BIOS extension ROM.
A computer's firmware may be manually updated by a user via a small utility program. In contrast, firmware in mass storage devices (hard-disk drives, optical disc drives, flash memory storage e.g. solid state drive) is less frequently updated, even when flash memory (rather than ROM, EEPROM) storage is used for the firmware.