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The introduction of 32-bit file access in Windows for Workgroups 3.11 meant that 16-bit real mode MS-DOS is not used for managing the files while Windows is running, and the earlier introduction of the 32-bit disk access means that the PC BIOS is often no longer used for managing hard disks.
A 32-bit protected-mode MS-DOS kernel based on Windows' 386 enhanced-mode kernel: Windows 95 VMM "Panther" [5] June 1993: The 32-bit Windows subsystem that could run on top of "Cougar" implementing a subset of Windows NT's Win32 API, but a superset of the Win32s API. Windows 95 "Rover" [5] June 1993: Windows for Mobile Computing, based on "Panther"
It bypassed MS-DOS and directly accessed the disk, either via the BIOS or (preferably) 32-bit disk access (Windows-native protected mode disk drivers). This feature was a backport from the then-unreleased Windows 95, as suggested by Microsoft's advertisements for Windows for Workgroups 3.11 ("the 32-bit file system from our Chicago project").
Many 16-bit Windows legacy programs can run without changes on newer 32-bit editions of Windows. The reason designers made this possible was to allow software developers time to remedy their software during the industry transition from Windows 3.1 to Windows 95 and later, without restricting the ability for the operating system to be upgraded to a current version before all programs used by a ...
Windows 95 and Windows 98 now analyse CONFIG.SYS and load MS-DOS real mode drivers. Windows ME ignores this. If the CONFIG.SYS file does not exist, the IO.SYS file loads the drivers IFSHLP.SYS, HIMEM.SYS and SETVER.EXE. Windows reserves all upper memory blocks for Windows 95 operating system use or for expanded memory.
Microsoft would later imitate much of it in Windows 95. Version 2.0 also provided a full 32-bit API, offered smooth multitasking and could take advantage of the 4 gigabytes of address space provided by the Intel 80386. Still, much of the system had 16-bit code internally which required, among other things, device drivers to be 16-bit code as well.
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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 [26] 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 [26] depends on role 32 GB XGA (1024 x 768)