Computer memory usually refers to a form of semiconductor storage known as random-access memory, typically DRAM (Dynamic-RAM) but many times other forms of fast but temporary storage. Without a significant amount of memory, a computer would merely be able to perform fixed operations and immediately output the result. In practice, almost all computers use a variety of memory types, organized in a storage hierarchy around the CPU, as a trade-off between performance and cost.

Another significant type of computer memory module is a flash memory which is a non-volatile computer storage chip that can be electrically erased and reprogrammed. It is primarily used in memory cards, USB flash drives, MP3 players and solid-state drives for general storage and transfer of data between computers and other digital products. Flash memory costs far less than byte-programmable EEPROM and therefore has become the dominant technology wherever a significant amount of non-volatile, solid state storage is needed.

Forward to pinouts or follow to 6 OLD hardware pinouts.
  • 172 pins unspecified
    172-Pin MicroDIMM DDR RAM 
  • 17 pin CFAST
    CFAST card 
  • 50 pin CompactFlash female
    CompactFlash (CF) bus connector CF cards are used in handheld and laptop computers, digital cameras, and a wide variety of other devices, including desktop computers.
  • 184 pins unspecified
    DDR SDRAM DIMM (184 pin, Unbuffered)  
  • 240 pin DIMM DDR2
    DDR2 DIMM Unbuffered Module (240 pin) 
  • 168 pin DIMM
    DRAM DIMM (168 pin, Unbuffered) DIMM=Dual Inline Memory Module
  • 10 pin Memory stick proprietary
    Memory stick (MS) card Memory Stick is a removable flash memory card format, used mostly in Sony portable hardware.
  • 10 pin Memory stick proprietary
    Memory Stick M2 
  • 60 pins unspecified
    Miniature Card Developed by Intel. Miniature Card is a memory-only expansion card.
  • 7 pin MM-card proprietary
    MultiMedia Card (MMC) The MultiMediaCard (MMC) is a flash memory memory card standard. It has been superseded by Secure Digital cards (SD card), but still in use because MMCs can be used in most devices that support SD cards.
  • 168 pin SDRAM socket
    SDRAM DIMM (168 pin, Unbuffered) DIMM=Dual Inline Memory Module
  • 9 pin SD-card proprietary
    Secure Digital (SD) card Secure Digital (SD) is a flash memory memory card format used in portable devices, including digital cameras and handheld computers.
  • 30 pin SIMM
    SIMM (30 pin) SIMM=Single Inline Memory Module
  • 72 pin SIMM
    SIMM (72 pin) 
  • 72 pin SIMM
    SIMM with ECC (72 pin) SIMM=Single Inline Memory Module. ECC=Error Correcting Code.
  • 8 pin SMARTCARD proprietary
    Smart Card (SIM Card) interface A smart card, chip card, or integrated circuit card, is a pocket-sized card with embedded integrated circuits. Described by ISO7816 standard. Used in cellular phones, pay TVs, ATM cards, etc.
  • 144 pins unspecified
    SO DIMM (144 pin) 
  • 72 pins unspecified
    SO DIMM (72 pin) SO DIMM=Small Outline Dual Inline Memory Module
  • 18 pin xD card proprietary
    xD picture card xD-Picture Card is a flash memory card format, used mainly in digital cameras. NAND Flash, with additional ID commands.

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