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  2. Features new to Windows 7 - Wikipedia

    en.wikipedia.org/wiki/Features_new_to_Windows_7

    Windows 7 incorporates many engineering changes to reduce the frequency of writes and flushes, which benefit SSDs in particular since each write operation wears the flash memory. Windows 7 also makes use of the TRIM command. If supported by the SSD (not implemented on early devices), this optimizes when erase cycles are performed, reducing the ...

  3. Commit charge - Wikipedia

    en.wikipedia.org/wiki/Commit_charge

    Similar displays in the Task Manager of Windows Vista and later have been changed to reflect usage of physical memory. In Task Manager's "Processes" display, each process's contribution to the "total commit charge" is shown in the "VM size" column in Windows XP and Server 2003. The same value is labeled "Commit size" in Windows Vista and later ...

  4. Windows Vista I/O technologies - Wikipedia

    en.wikipedia.org/wiki/Windows_Vista_I/O_technologies

    By default, the necessary files are loaded into main memory, but using a feature called ReadyBoost, Windows Vista and Windows 7 can use alternative storage such as USB flash drives, thereby freeing up main memory. Although hard disks may have higher sequential data transfer rates, flash drives can be faster for small files or non-sequential I/O ...

  5. HIMEM.SYS - Wikipedia

    en.wikipedia.org/wiki/HIMEM.SYS

    In Windows 3.1 and Windows 9x, there is also a command-line loadable version of HIMEM.SYS called XMSMMGR.EXE. It can load extended memory services after the system boots into the command prompt. It can load extended memory services after the system boots into the command prompt.

  6. High memory - Wikipedia

    en.wikipedia.org/wiki/High_memory

    High memory is the part of physical memory in a computer which is not directly mapped by the page tables of its operating system kernel. The phrase is also sometimes used as shorthand for the High Memory Area , which is a different concept entirely.

  7. RAM limit - Wikipedia

    en.wikipedia.org/wiki/RAM_limit

    MSDN Article: Memory Limits for Windows Releases; The system memory that is reported in the System Information dialog box in Windows Vista is less than you expect if 4 GB of RAM is installed – explains the issue; Windows Vista SP1 includes reporting of Installed System Memory (RAM) – details about the RAM limit

  8. Upper memory area - Wikipedia

    en.wikipedia.org/wiki/Upper_memory_area

    The next stage in the evolution of DOS was for the operating system to use upper memory blocks (UMBs) and the high memory area (HMA). This occurred with the release of DR DOS 5.0 in 1990. [2] DR DOS' built-in memory manager, EMM386.EXE, could perform most of the basic functionality of QEMM and comparable programs.

  9. Extended memory - Wikipedia

    en.wikipedia.org/wiki/Extended_memory

    Extended memory is located above 1 MB, includes the high memory area, and ends at 16 MB on the Intel 286 and at 4 GB on the Intel 386DX and later. In DOS memory management , extended memory refers to memory above the first megabyte (2 20 bytes) of address space in an IBM PC or compatible with an 80286 or later processor .