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<p> This stores each <a href="page.php?w=bit">bit</a> of data in a circuit called a <a href="page.php?w=flip-flop_%28electronics%29">flip-flop</a>, made of 4 to 6 transistors.  SRAM is less dense and more expensive per bit than DRAM, but faster and does not require <a href="page.php?w=memory_refresh">memory refresh</a>.  It is used for smaller <a href="page.php?w=cache_memory">cache memories</a> in computers. <br/>
* <b>CAM</b> (<a href="page.php?w=Content-addressable_memory">Content-addressable memory</a>)  This is a specialized type in which,</p><p>
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