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2. 3 GB barrier - Wikipedia

   en.wikipedia.org/wiki/3_GB_barrier

   In computing, the term 3 GB barrier refers to a limitation of some 32-bit operating systems running on x86 microprocessors. It prevents the operating systems from using all of 4 GiB ( 4 × 10243 bytes) of main memory. [ 1] The exact barrier varies by motherboard and I/O device configuration, particularly the size of video RAM; it may be in the ...

3. RAM limit - Wikipedia

   en.wikipedia.org/wiki/RAM_limit

   The 386DX had 32-bit addressing, allowing it to address up to 4 gigabytes (4096 megabytes) of memory. The Motorola 68020 , released in 1984, had a 32-bit address space, giving it a maximum addressable memory limit of 4 GB.

4. 2 GB limit - Wikipedia

   en.wikipedia.org/wiki/2_GB_limit

   The 2 GB limit refers to a physical memory barrier for a process running on a 32-bit operating system, which can only use a maximum of 2 GB of memory. [1] The problem mainly affects 32-bit versions of operating systems like Microsoft Windows and Linux, although some variants of the latter can overcome this barrier. [2]

5. Comparison of Microsoft Windows versions - Wikipedia

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

   Super VGA (800x600), 32-bit color 1024 x 768 for Windows Store apps 1366 x 768 to snap apps Windows 8.1: Windows 10: 1 GHz or faster processor or SoC: 1 GB (x86) 2 GB (x64) 4 GB 16 GB (x86) 20 GB (x64) 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 [24 ...

6. Year 2038 problem - Wikipedia

   en.wikipedia.org/wiki/Year_2038_problem

   The year 2038 problem (also known as Y2038, [ 1] Y2K38, Y2K38 superbug or the Epochalypse[ 2][ 3]) is a time computing problem that leaves some computer systems unable to represent times after 03:14:07 UTC on 19 January 2038. The problem exists in systems which measure Unix time —the number of seconds elapsed since the Unix epoch (00:00:00 ...

7. Physical Address Extension - Wikipedia

   en.wikipedia.org/wiki/Physical_Address_Extension

   However, "client" versions of 32-bit Windows (Windows XP SP2 and later, Windows Vista, Windows 7) limit physical address space to the first 4 GB for driver compatibility [16] even though these versions do run in PAE mode if NX support is enabled. Windows 8 and later releases will only run on processors which support PAE, in addition to NX and SSE2.

8. 32-bit computing - Wikipedia

   en.wikipedia.org/wiki/32-bit_computing

   A 32-bit register can store 2 32 different values. The range of integer values that can be stored in 32 bits depends on the integer representation used. With the two most common representations, the range is 0 through 4,294,967,295 (2 32 − 1) for representation as an binary number, and −2,147,483,648 (−2 31) through 2,147,483,647 (2 31 − 1) for representation as two's complement.

9. Windows 3.1 - Wikipedia

   en.wikipedia.org/wiki/Windows_3.1

   [13] [34] While Windows 3.0 was limited to 16 MB maximum memory, Windows 3.1 could access a theoretical 4 GB in the 386 enhanced mode. The actual practical ceiling is 256 MB. [35] Like its predecessors, it runs as a 16-bit version of Windows; Windows 3.1 is also the last Windows to run on a 16-bit version.