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Extender (materials)
Extender may refer to: *DOS extender, a technology for bypassing the limitations of the DOS operating systems family *Extender (ink), a transparent material added to printing inks *KC-10 Extender, an air-to-air tanker aircraft *Meat extenders *Media extender *Seafood extender or Surimi *Tele extender, a secondary lens for SLR cameras *Quickdraw or extender, a piece of climbing equipment used by rock and ice climbers to allow the climbing rope to run freely through bolt anchors or other protection while leading *Extender (set theory) *MG Extender, a pickup truck vehicle built by SAIC Motor and sold in Thailand See also *Ascender (typography) *Descender {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DOS Extender
A DOS extender is a computer software program running under DOS that enables software to run in a protected mode environment even though the host operating system is only capable of operating in real mode. DOS extenders were initially developed in the 1980s following the introduction of the Intel 80286 processor (and later expanded upon with the Intel 80386), to cope with the memory limitations of DOS. DOS extender operation A DOS extender is a program that "extends" DOS so that programs running in protected mode can transparently interface with the underlying DOS API. This was necessary because many of the functions provided by DOS require 16-bit segment and offset addresses pointing to memory locations within the Conventional memory, first 640 kilobytes of memory. Protected mode, however, uses an incompatible addressing method where the segment registers (now called selectors) are used to point to an entry in the Global Descriptor Table which describes the characteristics of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
