About: DOS memory management

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In IBM PC compatible computing, DOS memory management refers to software and techniques employed to give applications access to more than 640 kibibytes (640*1024 bytes) (KiB) of "conventional memory". The 640 KiB limit was specific to the IBM PC and close compatibles; other machines running MS-DOS had different limits, for example the Apricot PC could have up to 768 KiB and the Sirius Victor 9000, 896 KiB. Memory management on the IBM family was made complex by the need to maintain backward compatibility to the original PC design and real-mode DOS, while allowing computer users to take advantage of large amounts of low-cost memory and new generations of processors. Since DOS has given way to Microsoft Windows and other 32-bit operating systems not restricted by the original arbitrary 640 K

Attributes	Values
rdfs:label	DOS memory management (en) Manajemen memori DOS (in) 도스 메모리 관리 (ko)
rdfs:comment	Manajemen memori DOS merupakan mekanisme pengaturan memori pada sistem operasi DOS. Sistem operasi berjalan dalam mode real dengan arsitektur berbasis prosesor intel x86. Dalam mode real, hanya 20-bit pertama dari bus alamat yang akan digunakan oleh sistem operasi untuk mengakses memori, sehingga menjadikan jumlah memori yang dapat diakses hanya mencapai 220=1048576 bytes (1 MB) saja, dari yang seharusnya 32-bit/40-bit pada prosesor-prosesor modern. (in) In IBM PC compatible computing, DOS memory management refers to software and techniques employed to give applications access to more than 640 kibibytes (640*1024 bytes) (KiB) of "conventional memory". The 640 KiB limit was specific to the IBM PC and close compatibles; other machines running MS-DOS had different limits, for example the Apricot PC could have up to 768 KiB and the Sirius Victor 9000, 896 KiB. Memory management on the IBM family was made complex by the need to maintain backward compatibility to the original PC design and real-mode DOS, while allowing computer users to take advantage of large amounts of low-cost memory and new generations of processors. Since DOS has given way to Microsoft Windows and other 32-bit operating systems not restricted by the original arbitrary 640 K (en)
foaf:depiction
dcterms:subject	Memory management DOS memory management
Wikipage page ID	402125 (xsd:integer)
Wikipage revision ID	1100436256 (xsd:integer)
Link from a Wikipage to another Wikipage	QEMM Quarterdeck Office Systems VGA Virtual Control Program Interface Device driver Intel 8088 Real mode Pentium Protected mode Virtual 8086 mode Memory management Computer Chronicles Low memory area Global EMM Import Specification Conventional memory Option ROM Apricot PC MS-DOS Chipset Sirius Systems Technology Program counter Spreadsheet Bytes CONFIG.SYS Windows 2.0 HIMEM.SYS DOS (CONFIG.SYS directive) DOS Protected Mode Interface DOS Protected Mode Services DR-DOS DOS memory management Bank switching Power-on self-test Helix Cloaking Internet Archive Video BIOS API Keyboard controller (computing) Terminate and Stay Resident IBM PC/XT BIOS Booting DOS memory management IBM Monochrome Display Adapter IBM PC compatible Intel 80386 Intel 8042 Intel 80486 Microsoft Windows Operating system Random-access memory X86 Upper memory area Virtual DMA Services Virtual memory Expansion card Extended Virtual Control Program Interface Extended memory Random access memory Computer-aided drafting X86 memory segmentation 8086 IBM PC/AT Hard drive controller Cassette BASIC Kibibytes Port-mapped I/O Memory mapped I/O
Link from a Wikipage to an external page	https://archive.org/details/memory_2 http://support.microsoft.com/kb/95555
sameAs	DOS memory management DOS memory management DOS memory management DOS memory management DOS memory management DOS memory management
dbp:wikiPageUsesTemplate	dbt:About dbt:Main_article dbt:Refimprove dbt:Reflist dbt:Use_dmy_dates
thumbnail	wiki-commons:Special:FilePath/IBM_PC_Memory_areas.svg?width=300
cs1-dates	y (en)
date	May 2019 (en)
has abstract	In IBM PC compatible computing, DOS memory management refers to software and techniques employed to give applications access to more than 640 kibibytes (640*1024 bytes) (KiB) of "conventional memory". The 640 KiB limit was specific to the IBM PC and close compatibles; other machines running MS-DOS had different limits, for example the Apricot PC could have up to 768 KiB and the Sirius Victor 9000, 896 KiB. Memory management on the IBM family was made complex by the need to maintain backward compatibility to the original PC design and real-mode DOS, while allowing computer users to take advantage of large amounts of low-cost memory and new generations of processors. Since DOS has given way to Microsoft Windows and other 32-bit operating systems not restricted by the original arbitrary 640 KiB limit of the IBM PC, managing the memory of a personal computer no longer requires the user to manually manipulate internal settings and parameters of the system. The 640 KiB limit imposed great complexity on hardware and software intended to circumvent it; the physical memory in a machine could be organised as a combination of base or conventional memory (including lower memory), upper memory, high memory (not the same as upper memory), extended memory, and expanded memory, all handled in different ways. (en) Manajemen memori DOS merupakan mekanisme pengaturan memori pada sistem operasi DOS. Sistem operasi berjalan dalam mode real dengan arsitektur berbasis prosesor intel x86. Dalam mode real, hanya 20-bit pertama dari bus alamat yang akan digunakan oleh sistem operasi untuk mengakses memori, sehingga menjadikan jumlah memori yang dapat diakses hanya mencapai 220=1048576 bytes (1 MB) saja, dari yang seharusnya 32-bit/40-bit pada prosesor-prosesor modern. (in)
prov:wasDerivedFrom	wikipedia-en:DOS_memory_management?oldid=1100436256&ns=0
page length (characters) of wiki page	15538 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:DOS_memory_management

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