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INTERNAL CHIP ORGANIZATION

A memory chip is an electronic component in which a program, data or both can be stored. The program / data are stored in the memory chip as a series of numbers - zeros and ones (=bits).  A bit can be either a zero or a one.  Sixteen bits are a "word", eight bits are a "byte" and four bits are a "nibble". ORGANIZATION OF A MEMORY CHIP For the 8 bit memory chips (the most common type) the bits are put together in a byte (= 8 bits) and stored under an "address". The bytes can be accessed at this address and then the eight bits of the accessed address are output on its eight data ports. EPROM memory chips (27 / 27C...) EPROM stands for Erasable Programmable Read Only Memory. "Erasable" means that the data on it can be removed. "Programmable" means that a program or data can be programmed (burned) into this chip. "Read Only Memory" means that this type of memory can be read out but not programmed in ...
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