英语四级阅读理解的精炼50篇011:”64 位大帝”登基(含答案)_大学英语阅读

英语四级阅读理解的精炼50篇011:”64 位大帝”登基(含答案)

　　英语四级阅读理解精炼第011篇，练习关于64 位大帝登基的阅读理解，含有四级阅读练习题，参考译文，答案等内容。

　　11. 64-Bit Takes Off

　　64-bit desktop computing has taken a significant step toward becoming a pervasive reality:AMD s release of its Athlon 64 chips and Apple s launch of its G5 CPUs means 64-bit processors, once reserved for servers and high-end workstations, are now in PCs available on retail shelves.

　　In time, 64 -bit PCs could change the face of desktop computing. A 64 -bit chip can run longer, more complex instructions than a 32 -bit one, improving performance of dataintensive tasks such as audio and video encoding, advanced engineering design apps1 ,and, naturally, games.

　　Equally key is a 64-bit CPU s ability to recognize and use a lot more RAM2 . Today s 32 -bit chips, such as AMD s Athlon XP and Intel s Pentium 4 , can address up to 4GB of RAM split between the OS and applications. Few PCs have that much memory, and even fewer apps use it. But with ever-more-complex software, that limitation may become a bottleneck, making Athlon 64 s ability to address a whopping terabyte 3 of physical memory very attractive.

　　Why is AMD pushing the 64 -bit angle at all? Because company executives believe the 64 -bit desktop age is dawning now. Once video editors watch a 64-bit PC encode video directly to a DVD on the fly, they ll want one , says Rich Heye , vice president of AMD s microprocessor unit. And once gamers see the cinematic quality that 64-bit chips help make possible , they ll want one. Though mass-market adoption will take a few years, the average lifetime of a PC is three to four years, and I think a lot of people will be running 64 bits before that s up, Heye says.