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搜索引擎从1990年诞生到1993年大批涌现,发展至今,主要类型有:目录式搜索引擎、机器人搜索引擎、垂直搜索引擎和元搜索引擎。未来的搜索引擎将朝着程序智能化、检索知识化和提供多媒体化方向发展。
Search engines from the birth of 1990 to a large number of emerging in 1993, the development so far, the main types are: directory search engine, robot search engine, vertical search engine and meta search engine. The search engine in the future will move towards intelligent programming, retrieval of knowledgeable and multimedia-oriented development.