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If an independent installation of both, DOS and Windows is desired, DOS ought to be installed prior to Windows, at the start of a small partition. The system must be transferred by the (dangerous) "SYSTEM" DOS-command, while the other files constituting DOS can simply be copied (the files located in the DOS-root and the entire COMMAND directory).
The maximum amount of RAM that Windows XP can support varies depending on the product edition and the processor architecture. All 32-bit editions of XP support up to 4 GB, except the Windows XP Starter edition, which supports up to 512 MB of RAM. [103] The 64-bit editions support up to 128 GB. [104]
The original releases of Windows XP and Windows XP SP1 used PAE mode to allow RAM to extend beyond the 4 GB address limit. However, it led to compatibility problems with 3rd party drivers which led Microsoft to remove this capability in Windows XP Service Pack 2.
A single standard process on a 32-bit Windows operating system is limited to a total of 2,093,056 kilobytes (2 GB minus one 4 KB page), while large address aware [45] 32-bit processes can allocate up to 4 GB. Windows XP x64 can support much more memory; although the theoretical memory limit a 64-bit computer can address is about 16 exabytes ...
With 4 GiB or more of RAM installed, and with RAM occupying a contiguous range of addresses starting at 0, some of the MMIO locations will overlap with RAM addresses. On machines with large amounts of video memory, MMIO locations have been found to occupy as much as 1.8 GB of the 32-bit address space. [12]
Some performance improvements could be seen in memory management and graphics display, but other parts of OS have equal or lower performance than Windows XP. On a low-end computer system, Windows XP outperformed Windows Vista in most tested areas. Windows OS network performance depends on the packet size and used protocol. However, in general ...
Windows 7 and newer - Works best with the latest version of Edge, Firefox, Chrome, Safari, and AOL Desktop Gold. Mac OS X and newer - Works best with the latest version of Safari, Firefox, and Chrome.
The Eee PC 900 comes with a removable PCI Express Mini SSD module, with or without four additional 1 GB memory chips soldered on the main board. Different models come with different-sized SSDs. One Linux version has 4 GB, a MS Windows XP version has 8 GB, and all remaining ones, MS Windows XP or Linux, have 16 GB.