extended memory

extended memory
   Memory beyond 1MB on computers using the Intel 80286 and later processors, not configured for expanded memory.
   PCs based on the early Intel processors could access only 1MB of memory, of which 640KB was available for applications, and the remaining 384KB was reserved for MS-DOS, the BIOS, and video settings. Later processors can access more memory, but it was the 80386 with its ability to address 4GB of memory that really made extended memory usable. Also, Microsoft Windows and other operating systems running on Intel processors using the protected mode of the 80386 and later processors can access all the available system memory in the same way.

Dictionary of networking . 2014.

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  • extended memory — noun (computing) In MS DOS, extra memory beyond the first megabyte, accessible through a memory manager • • • Main Entry: ↑extend …   Useful english dictionary

  • Extended Memory —   [dt. »Erweiterungsspeicher«], XMS …   Universal-Lexikon

  • Extended memory — In computing, Extended memory refers to memory above the first megabyte of address space in an IBM PC with an 80286 or later processor. OverviewOn x86 based PCs, extended memory is only available with an Intel 80286 processor or higher. Only… …   Wikipedia

  • Extended Memory Area —   [dt. »Erweiterungsspeicher Gebiet«], Synonym für XMS …   Universal-Lexikon

  • Extended Memory Manager —   [dt. »Erweiterungsspeicherverwalter«], unter älteren DOS Versionen (DOS) der Gerätetreiber für den XMS Speicher (XMS). Ab DOS 4.0 (und auch unter Windows 3.1) war hierfür himem.sys zuständig …   Universal-Lexikon

  • Extended Memory Specification — Extended Memory Specification,   XMS …   Universal-Lexikon

  • Extended Memory Specification — Die Extended Memory Specification (kurz: XMS) ist eine Norm, die festlegt, wie Programme unter dem Betriebssystem MS DOS (und kompatible) auf den Hauptspeicher jenseits der 1 Megabyte Grenze (den so genannten extended memory, auch als… …   Deutsch Wikipedia

  • Extended Memory Specification —    Abbreviated XMS. A standard developed by Microsoft, Intel, Lotus, and AST Research that became the preferred way of accessing extended memory in the PC. MS DOS includes the extended memory device driver HIMEM.SYS, and this command or an… …   Dictionary of networking

  • extended memory manager — program which allows access to extended memory …   English contemporary dictionary

  • Extended Memory Specification — standard procedure for accessing a block of extended memory of 640K just above 1MB (Computers) …   English contemporary dictionary

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