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1989年春天,微机工业的双冠军——Intel 和Mo-torola 公司推出可使IBM PC/兼容系统,Macintoshe机和Unix 工作站等性能增加二倍的新型微处理器——80486和68040.这两种新器件可称为CPU 设计道路上的重要里程碑.8088系列的最新成员80486CPU 的运算速度比80386的运算速度约快2～4倍.一些微处理器专家说:80486是第一个在性能上向RISC 芯片挑战的复合指令集计算机芯片(CISC).Intel 公司还正式宣布了新的80386 33MHz 型芯片,预计在今年应市.而计算机制造厂家则宣布:他们将提供采这种CPU 的新机型.
In the spring of 1989, the dual-champion computer industry, Intel and Mo-torola, introduced new microprocessors that double the performance of IBM PC / compatible systems, Macintoshe machines and Unix workstations - the 80486 and the 68040. Both The new device can be called an important milestone on the road to CPU design. The newest member of the 8088 series, the 80486 CPU, operates approximately 2 to 4 times faster than the 80386. Some microprocessor specialists say the 80486 is the first in a performance-based RISC Chip Challenge Commands Computer Chip (CISC) .Intel also officially announced the new 80386 33MHz chipset, which is expected to hit the market this year, while computer makers announced they will offer a new model for the CPU .