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how many type of ram

Discussion in 'Hardware' started by BrotherJohn, Jul 19, 2004.

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  1. BrotherJohn

    BrotherJohn Thread Starter

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    Hyehttp://forums.techguy.org/newthread.php?do=newthread&f=19#
    Confused
     
  2. Maverick83

    Maverick83

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    What do you need to know?
     
  3. RAMAddict

    RAMAddict

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    how many different types of RAM there are?
     
  4. RAMAddict

    RAMAddict

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    If that is so:

    SIMM (single in-line memory module): A memory-chip module with 72 or 30 pins that connect the module to the PC motherboard. SIMMs are normally found in older systems. They support 32-bit and 16-bit data transfers, respectively.

    DIMM (dual in-line memory module): A memory-chip module with 168 pins that connect the module to the PC motherboard. DIMMs are the most popular memory module available today. They support 64-bit data transfers.

    DRAM (dynamic RAM): This older, "classic" form of RAM has been supplanted by SDRAM. DRAM stores each bit in a storage cell as an electrical charge that must be refreshed every few milliseconds to retain the information. Although less expensive than SDRAM, DRAM is also slower.

    EDO RAM (extended data-out RAM): A faster form of DRAM, EDO extends the time that output data is valid, which eases timing issues between the CPU and RAM and enhances performance. EDO has now been replaced by the even faster SDRAM.

    SDRAM (synchronous DRAM): The replacement for DRAM, FPM, and EDO, SDRAM synchronizes memory access with the CPU clock for faster data transfer. Basically, one block of data can be sent to the CPU while another is being prepared for access.

    (taken from CNET.NET)

    Hope this helped you out!
     
  5. BrotherJohn

    BrotherJohn Thread Starter

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