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The Intel 8080 used by these computers was an 8-bit processor, with 16-bit address space, which allowed it access up to 64 KB of memory; .COM executables used with CP/M have a maximum size of 64 KB due to this, as do those used by DOS operating systems for 16-bit microprocessors.
Many 32-bit computers have 32 physical address bits and are thus limited to 4 GiB (2 32 words) of memory. [3] [4] x86 processors prior to the Pentium Pro have 32 or fewer physical address bits; however, most x86 processors since the Pentium Pro, which was first sold in 1995, have the Physical Address Extension (PAE) mechanism, [5]: 445 which allows addressing up to 64 GiB (2 36 words) of memory.
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]
Most users will only need about 8 GB of RAM, but if you want to use several apps at once, you might need 16 GB or more.
SoftPerfect RAM Disk can access memory available to Windows, i.e. on 32-bit systems it is limited to the same 4 GB as the 32-bit Windows itself, otherwise for physical memory beyond 4 GB it must be installed on 64-bit Windows. Multiple RAM disks can be created, and these can optionally be made persistent by automatically saving contents to and ...
To reallocate RAM to "Minecraft," you'll have to edit the game's settings through whatever launcher app you use.
The high memory area (HMA) is the RAM area consisting of the first 64 KiB, minus 16 bytes, of the extended memory on an IBM PC/AT or compatible microcomputer. Originally, the logic gate was a gate connected to the Intel 8042 keyboard controller. Controlling it was a relatively slow process.
The barrier was only overcome with the arrival of DOS extenders, which allowed DOS applications to run in 16-bit or 32-bit protected mode, but these were not very widely used outside of computer gaming. With a 32-bit DOS extender, a game could benefit from a 32-bit flat address space and the full 32-bit instruction set without the 66h/67h ...