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Extended memory is located above 1 MB, includes the high memory area, and ends at 16 MB on the Intel 286 and at 4 GB on the Intel 386DX and later. In DOS memory management, extended memory refers to memory above the first megabyte (2 20 bytes) of address space in an IBM PC or compatible with an 80286 or later processor.
In DOS memory management, expanded memory is a system of bank switching that provided additional memory to DOS programs beyond the limit of conventional memory (640 KiB). Expanded memory is an umbrella term for several incompatible technology variants.
Expanded memory managers such as Quarterdeck's QEMM product and Microsoft's EMM386 supported the expanded memory standard without requirement for special memory boards. On 386 and subsequent processors, memory managers like QEMM might move the bulk of the code for a driver or TSR into extended memory and replace it with a small fingerhold that ...
Hardware extensions allowed access to more memory than the 8086 CPU could address through paging memory. This memory was known as expanded memory. An industry de facto standard was developed by the LIM consortium, composed of Lotus, Intel and Microsoft. This standard was the Expanded Memory Specification (EMS). Pages of memory from expanded ...
EMM386 is the expanded memory manager of Microsoft's MS-DOS, IBM's PC DOS, Digital Research's DR-DOS, and Datalight's ROM-DOS [1] which is used to create expanded memory using extended memory on Intel 80386 CPUs. There also is an EMM386.EXE available in FreeDOS. [2]
Various schemes which increased the addressable memory space of older computer architectures (such as x86). Pages in category "Memory expansion" The following 14 pages are in this category, out of 14 total.
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XHTML—eXtensible Hypertext Markup Language; XILP—X Interactive ListProc; XML—eXtensible Markup Language; XMMS—X Multimedia System; XMPP—eXtensible Messaging and Presence Protocol; XMS—Extended Memory Specification; XNS—Xerox Network Systems; XP—Cross-Platform; XP—Extreme Programming; XPCOM—Cross Platform Component Object ...