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Q. Explain about Associative Memory Organisations?
The associative memory is arranged in w words with b bits per word. In w x b array, every bit is known as a cell. Every cell is made up of a flip-flop which comprises some comparison logic gates for read-write operations and pattern match. So it is possible to write or read concurrently because of this logic structure. A set of bit cells of all the words at the same place in vertical column is termed as bit slice as displayed in Figure below.
Figure: Associative memory
In organisation of an associative memory subsequent registers are used:
• Comparand Register (C): This register is used to hold operands that are being searched for or being compared with.
• Masking Register (M): It might be possible all bit slices are not involved in parallel operations. Masking register is used to disable or enable bit slices.
• Temporary (T) and Indicator (I) Registers: Indicator register is used to hold the current match patterns and temporary registers are used to hold the prior match patterns.
The decimal equivalent of Binary number 11010 is ? Ans. 11010 = 1 X 2 4 + 1 X 2 3 + 0 X 2 2 + 1 X 2 1 = 26.
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what is the use of d-flipflop in associative memory
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Q. Determine the complete OR gate and AND gate decoder count for an IC memory with 4096 words of 1 bit each, using the Linear select memory organization and Two dimensional Memory
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