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河北唐山文沅问:在购买电脑时,常听说“埃舍”、“依舍”和“威舍”等总线名称,这些名称都是什么意思?这些总线的主要功能如何?有什么区别? 答:“埃舍”是ISA的译音,“依舍”是EISA的译音,“威舍”是VESA的译音。这是目前国内市场上IBM-PC兼容电脑(各种386、486电脑等)中最常见的三种总线结构。总线不同,则CPU到存储器的线路结构、主机板结构和总线I/O扩展槽也不同。不同的总线结构对应不同的总线内核逻辑,这种内核逻辑可以制成专用芯片,也可以固化在CPU芯片内。EISA总线的功能强于ISA总线,VESA总线的功能又强于EISA总线;也就是说,在
Wen Yuan, Hebei Tangshan asked: When buying a computer, often heard of “Essar”, “according to homes” and “Vishay” bus name, these names are what is meant by these main functions of the bus what? What is the difference? : “Escher” is the transliteration of ISA, “Escher” is transliteration of EISA, “Visay” is the transliteration of VESA. This is the most common type of bus structure in IBM-PC-compatible computers (various 386,486 computers, etc.) currently on the domestic market. Different bus, the CPU to the memory line structure, the motherboard structure and bus I / O expansion slot is also different. Different bus structure corresponds to different bus core logic, this kind of core logic can be made into a special chip, can also be solidified in the CPU chip. The EISA bus is more powerful than the ISA bus and the VESA bus is stronger than the EISA bus; that is,