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  2. RAM drive - Wikipedia

    en.wikipedia.org/wiki/RAM_drive

    A RAM drive (also called a RAM disk) is a block of random-access memory (primary storage or volatile memory) that a computer's software is treating as if the memory were a disk drive (secondary storage). RAM drives provide high-performance temporary storage for demanding tasks and protect non-volatile storage devices from wearing down, since ...

  3. Computer data storage - Wikipedia

    en.wikipedia.org/wiki/Computer_data_storage

    Tertiary storage or tertiary memory [7] is a level below secondary storage. Typically, it involves a robotic mechanism which will mount (insert) and dismount removable mass storage media into a storage device according to the system's demands; such data are often copied to secondary storage before use. It is primarily used for archiving rarely ...

  4. Random-access memory - Wikipedia

    en.wikipedia.org/wiki/Random-access_memory

    In general, the term RAM refers solely to solid-state memory devices (either DRAM or SRAM), and more specifically the main memory in most computers. In optical storage, the term DVD-RAM is somewhat of a misnomer since, it is not random access; it behaves much like a hard disc drive if somewhat slower.

  5. Solid-state storage - Wikipedia

    en.wikipedia.org/wiki/Solid-state_storage

    An illustration of the write amplification phenomenon in flash-based storage devices. Over time, advancements in central processing unit (CPU) speed has driven innovation in secondary storage technology. [7] One such innovation, flash memory, is a non-volatile storage medium that can be electrically erased and reprogrammed.

  6. Computer memory - Wikipedia

    en.wikipedia.org/wiki/Computer_memory

    Historical lowest retail price of computer memory and storage Electromechanical memory used in the IBM 602, an early punch multiplying calculator Detail of the back of a section of ENIAC, showing vacuum tubes Williams tube used as memory in the IAS computer c. 1951 8 GB microSDHC card on top of 8 bytes of magnetic-core memory (1 core is 1 bit.)

  7. Non-volatile memory - Wikipedia

    en.wikipedia.org/wiki/Non-volatile_memory

    Other examples of non-volatile memory include read-only memory (ROM), EPROM (erasable programmable ROM) and EEPROM (electrically erasable programmable ROM), ferroelectric RAM, most types of computer data storage devices (e.g. disk storage, hard disk drives, optical discs, floppy disks, and magnetic tape), and early computer storage methods such ...

  8. Static random-access memory - Wikipedia

    en.wikipedia.org/wiki/Static_random-access_memory

    The first device was a 64-bit MOS p-channel SRAM. [2] [3] SRAM was the main driver behind any new CMOS-based technology fabrication process since the 1960s, when CMOS was invented. [4] In 1964, Arnold Farber and Eugene Schlig, working for IBM, created a hard-wired memory cell, using a transistor gate and tunnel diode latch.

  9. Sequential access memory - Wikipedia

    en.wikipedia.org/wiki/Sequential_access_memory

    Magnetic sequential access memory is typically used for secondary storage in general-purpose computers due to their higher density at lower cost compared to RAM, as well as resistance to wear and non-volatility. Magnetic tape is a type of sequential access memory still in use; historically, drum memory has also been used.

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