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2. Physical Address Extension - Wikipedia

   en.wikipedia.org/wiki/Physical_Address_Extension

   Mac OS X Tiger through Mac OS X Snow Leopard support PAE and the NX bit on IA-32 processors; Snow Leopard was the last version to support IA-32 processors. On x86-64 processors, all versions of macOS use 4-level paging (IA-32e paging rather than PAE) to address memory above 4GB. Mac Pro and Xserve systems can use up to 64 GB of RAM. [23]

3. Dirty bit - Wikipedia

   en.wikipedia.org/wiki/Dirty_bit

   A dirty bit or modified bit is a bit that is associated with a block of computer memory and indicates whether the corresponding block of memory has been modified. [1] The dirty bit is set when the processor writes to (modifies) this memory. The bit indicates that its associated block of memory has been modified and has not been saved to storage ...

4. UEFI - Wikipedia

   en.wikipedia.org/wiki/UEFI

   Standard PC BIOS is limited to a 16-bit processor mode and 1 MB of addressable memory space, resulting from the design based on the IBM 5150 that used a 16-bit Intel 8088 processor. [8] [34] In comparison, the processor mode in a UEFI environment can be either 32-bit (IA-32, AArch32) or 64-bit (x86-64, Itanium, and AArch64).

5. BIOS - Wikipedia

   en.wikipedia.org/wiki/BIOS

   In computing, BIOS (/ ˈ b aɪ ɒ s,-oʊ s /, BY-oss, -⁠ohss; Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is a type of firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup). [1]

6. Windows Update - Wikipedia

   en.wikipedia.org/wiki/Windows_Update

   Windows Update is a Microsoft service for the Windows 9x and Windows NT families of the Microsoft Windows operating system, which automates downloading and installing Microsoft Windows software updates over the Internet.

7. Comparison of Microsoft Windows versions - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_Microsoft...

   Super VGA (800x600), 32-bit color Windows Server 2016: 1.4 GHz 64-bit processor 512 MB ECC memory 2 GB with Desktop Experience installed [27] depends on role 32 GB (~10 GB for OS) XGA (1024 x 768) Windows Server 2019: 1.4 GHz 64-bit processor 512 MB ECC memory 2 GB with Desktop Experience installed [27] depends on role 32 GB XGA (1024 x 768)