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微电脑(PC机)的发展令人眼花缭乱,主要原因是它的核心部件——微处理器(MPU)更新换代正以极快速度推进,掀起一浪高过一浪的热潮。从1971～1980年,微处理器由I4004、I8080发展到I8086、I8088、M6809、Z—8000。1981年以后,各厂家连续推出了I80286、I80386、I80486、I80586为代表的微处理器,形成所谓的第五代产品,PC机也以此而命名机型。随后不久即出现了Pentium Ⅰ、Pentium Ⅱ的微处理器,1998年Pentium Ⅱ—300(450)MHz被冠称为第六代微处理器。今年2月17日因特尔公司首先在美国圣荷塞向世界推出了Pentium Ⅲ微处理器,同期IBM、Compaq、Dell、Gateway、HP等
The dazzling development of microcomputers (PCs) is mainly due to the fact that its core component, the microprocessor (MPU), is being upgraded at a very fast pace, setting off waves of wave after wave. From 1971 to 1980, microprocessors developed from I4004 and I8080 to I8086, I8088, M6809 and Z-8000. Since 1981, various manufacturers have successively introduced microprocessors such as I80286, I80386, I80486 and I80586 to form the so-called microprocessor The fifth generation of products, PC machines are also named models. Shortly thereafter, the Pentium I and Pentium II microprocessors appeared. In 1998, the Pentium II-300 (450) MHz was named the sixth generation microprocessors. February 17 this year, Intel Corporation first launched in the United States San Jose Pentium III microprocessor to the world over the same period IBM, Compaq, Dell, Gateway, HP, etc.