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  2. Memory hierarchy - Wikipedia

    en.wikipedia.org/wiki/Memory_hierarchy

    This is sometimes called the space cost, as a larger memory object is more likely to overflow a small/fast level and require use of a larger/slower level. The resulting load on memory use is known as pressure (respectively register pressure , cache pressure , and (main) memory pressure ).

  3. Density (computer storage) - Wikipedia

    en.wikipedia.org/wiki/Density_(computer_storage)

    As the density increases, the number of platters can be reduced, leading to lower costs. Hard drives are often measured in terms of cost per bit. For example, the first commercial hard drive, IBM's RAMAC in 1957, supplied 3.75 MB for $34,500, or $9,200 per megabyte. In 1989, a 40 MB hard drive cost $1200, or $30/MB.

  4. M.2 - Wikipedia

    en.wikipedia.org/wiki/M.2

    M.2, pronounced m dot two [1] and formerly known as the Next Generation Form Factor (NGFF), is a specification for internally mounted computer expansion cards and associated connectors. M.2 replaces the Mini SATA ( mSATA ) standard and the Mini PCIe ( mPCIe ) standard (which is how it got the short name of M dot 2 from being Mini SATA 2).

  5. Disk storage - Wikipedia

    en.wikipedia.org/wiki/Disk_storage

    This means the heads cover more distance per unit of time on the outer tracks than on the inner tracks. This method is typical with computer hard drives. Constant linear velocity (CLV) keeps the distance covered by the heads per unit time fixed. Thus the disk has to slow down as the arm moves to the outer tracks. This method is typical for CD ...

  6. Core rope memory - Wikipedia

    en.wikipedia.org/wiki/Core_rope_memory

    By the standards of the time, a relatively large amount of data could be stored in a small installed volume of core rope memory: 72 kilobytes per cubic foot, or roughly 2.5 megabytes per cubic meter. This was about 18 times the amount of magnetic-core memory (within two cubic feet).

  7. System Mechanic Software | 30-Day Free* Trial | AOL Products

    www.aol.com/products/utilities/system-mechanic

    Download System Mechanic to help repair and speed up your slow PC. Try it free* for 30 days now.

  8. How Much Will It Cost To Be a Space Tourist? - AOL

    www.aol.com/finance/much-cost-space-tourist...

    A flight on Virgin Galactic’s suborbital rocket plane costs $450,000, but it only reaches the edge of space, to an altitude of more than 50 miles. The New Shepard, on the other hand, reaches an ...

  9. Cost distance analysis - Wikipedia

    en.wikipedia.org/wiki/Cost_distance_analysis

    The primary data set used in cost distance analysis is the cost raster, sometimes called the cost-of-passage surface, [9] the friction image, [8] the cost-rate field, or cost surface. In most implementations, this is a raster grid , in which the value of each cell represents the cost (i.e., expended resources, such as time, money, or energy) of ...