3.3 RAM Characteristics

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6 Terms

1
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Dual Inline Memory Module (DIMM)

This is where RAM is stored

2
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Dynamic Random Access Memory (DRAM)

  • contains capacitors

  • refreshes often

  • operates Asynchronously w/ system clock


3
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Synchronous Dynamic Random Access Memory (SDRAM)

  • used in todays RAM DIMMs

  • operates synchronously with system clock


4
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Small Outline Dual In-Line Memory Module (SODIMM)

used in smaller devices like laptops

5
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Error Correcting Code

detects if the data was correctly processed by the memory module and makes a correction

  • count memory chips on RAM module to see if it has it

  • non ECC - 8 chips

  • ECC - 9 chips


6
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Double Data Rate (DDR)

sends double the amount of data in each clock signal