EEPROM is an older, more reliable technology. It is somewhat slower than Flash.
Flash and EEPROM are very similar, but there is a subtle difference. Flash and EEPROM both use quantum cells to trap electons. Each cell represents one bit of data. The presence - or absence - of electons in a cell indicates whether the bit is a 1 or 0.
The cells have a finite life - every time a cell is erased, it wears out a little bit. In EEPROM, cells are erased one-by-one. The only cells erased are those which are 1 but need to be zero. (Writing a 1 to a cell that's 0 causes very little wear, IIRC)
In Flash, a large block is erased all at once. In some devices, this "block" is the entire device. So in Flash, cells are erased whether they need it or not. This cuts down on the lifespan of the device, but is much, much faster than the EEPROM method of going cell-by-cell.
Erasure method: Both Flash and EEPROM erase cells by means of an electric field. I think it is high-frequency and "pops" the electrons out of the cells, but I am not certain.
Other similar devices are EPROM (sometimes UVEPROM) and OTPROM (sometimes PROM). EPROM/UVEPROM lacks the structures that generate the electrical field for erasure. These devices have a window on top, usually covered by a paper sticker. To erase, the sticker is removed and the device is exposed to intense ultraviolet light for 30-45 minutes.
The only difference between OTPROM and UVEPROM is that OTPROM lacks the UV window - there is no way to erase the data. Adding the UV window to the device package significantly increases cost, so there is a niche for one-time-programmable devices.
AnswerFlash Memmory is a special type of EEPROM (Eletrically Eraseable Programmable Read Only Memory)The difference between flash memory and EEPROM is that flash memory is block eraseable and EEPROM is byte-erasable.
8051 and 89c51 are same architecture but difference is ROM memory . ROM less for 8051 while ROM (flash) for 89c51. it advanced EEPROM (flash) is difference.
Answer: EEPROM (aka: E2PROM) is a type of non-volatile memory used in computers and other electronic devices to store small amounts of data that must be saved when power is removed, e.g., calibration tables or device configuration. When larger amounts of static data are to be stored (such as in USB flash drives) a specific type of EEPROM such as flash memory is more economical than traditional EEPROM devices.
we can say its a kind of ROM... since flash memory is a specialised EEPROM...
Eeprom is much better and faster compare to flash. You can find out the difference at en.wikipedia.org/wiki/EEPROM and en.wikipedia.org/wiki/Flash_memory
EEPROM is used in computers and other electronic devices to store small amounts of data when power is removed. EEPROM is also similar to flash memory however, the difference is that EEPROM requires data to be written or erased one byte at a time whereas flash memory allows data to be written or erased in blocks. This makes flash memory faster. EEPROM is used in computers and other electronic devices to store small amounts of data that must be saved when power is removed. EEPROMs are realized as arrays of floating-gate transistors.
A flash memory chip is a close relative to EEPROM, it differs in that it can erase one block or page at a time. Therefore flash memory is a non volatile memory.
8051 is generic name. at89c51 is a variant of 8051 manufactured by atmel. it has a flash memory while older 8051 has no memory (runs from external eeprom)
what is the diference between a computer internal memory and external memory
I really don't know-sorry!
EEEPROM: Emulated EEPROM This is flash memory with a SW layer to give it EEPROM features such as high number of write cycles, auto-erase, single byte writes, etc.
Disk filesystemVirtualPhysicalCacheSRAMDRAMROMCAMNOVRAMEEPROMUVPROMFlashCore memoryDelay line memoryCRT memoryetc.
Dragging it to the flash memory usually means copying it to a memory which is slower and can be portable.The desktop memory however is faster than flash memory but sadly not portable.
A 16GB flash drive can hold 4x as many files as a 4GB flash drive. I would recommend a 16GB.
SSDs use Flash EEPROM to simulate the operation of a hard disk drive, without moving parts.
On a PSP, this would usually be when new firmware (Operating Software) is installed on your PSP. This firm ware is usually stored in form of EEPROM (Electronically Erasable Programmable Read Only Memory) called flash memory. This is very similar to the memory cards used in cameras.
USB is a Universal Serial Bus - a standardised socket on a computer into which you can plug many devices such as cameras, mp3 players and flash drives. A flash drive is a stick of memory that can be used to store and transfer information between different computers. It retains the contents of the memory chip even though there is no power. It was called Flash memory because when the memory is wiped it was likened to a flash from a camera.
They are all the same. Their names are interchangeable
Flash drives and other forms of flash storage use a special form of PROM called EEPROM. By applying an electric charge to it, data can be written to EEPROM chips.
EEPROM (Electronic Erasable Programmable Read Only Memory) is used to store large amounts of data on pen/flash drives. EEPROM is a form of static, nonvolatile read only memory which uses electrical signals to program and erase data.
EEPROM - Electrically Erasable Programmable Read Only Memory. It is also a serial device since USB #.# is a serial standard.
You can buy a solid state hard drive which is the same as a flash drive.However most hard drives are mechanical and
here we go: the eraseing of data is done in accordance with clock pulse and it takes significant time to move from one pulse to the next and so the time taken to erase the data in case of eeprom is significantly high as compared to flash where data is allocated in different sector level and erasing data is also at that level,i.e. complete data of a sector is erased at a time.