IBM公司5月5日公布了S/390大型机的升级系统,新系统名为S/390 G5(第5代)。IBM宣称其运算速度达每秒9亿条指令,是前一代S/390的一倍。 G5基于IBM的6X CMOS处理器,该处理器中含有2500万个晶体管,一个周期仅为2.15纳秒,相当于一个465MHz的PC芯片。新系统在一个模块内集中了12个处理器(10个用于外部工作处理,2个 IBM announced the S / 390 mainframe upgrade system on May 5 with a new system called S / 390 G5 (5th Generation). IBM claims operating at 900 million instructions per second, double the previous generation S / 390. The G5 is based on IBM’s 6X CMOS processor with 25 million transistors in a single cycle of 2.15 nanoseconds, which is equivalent to a 465MHz PC chip. The new system centralizes 12 processors in a single module (10 for external work processes, 2