Thursday, June 18, 2009

RAM (RANDOM ACCESS MEMORY)

A memory unit stores binary information in groups of bits called words. It is an one unit. A group of 8-bits is called a byte.
1 byte = 8-bit word





Ex: memory unit 1k words of 16-bit each.
1k = 1024 = 210
16-bits = 2 bytes
Memory 2048 = 2k bytes





Relationship between words and address bits
2k≥m
m = total number of words
k = number of address bits

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