Microsoft Vista this large consumption of memory so that we are aware of the importance of memory, in the popular Centrino 4 gradually today, the memory is also regime change. Not only in the capacity on the improved, from 512 MB to 1 GB to 2 GB and 4 GB; work on the frequency is from 533/667 MHz to 800 MHz constantly changing. We usually focus on the general shape of the notebook platform, and the independent cards, memory seems to be a little-known small role, once the performance bottlenecks of the most easily upgrade or memory. Centrino four times the memory, in the end carry forward those critical of the significance of this » First, the development path of memory Looking back on past events, we can find the development of memory, has two non-standard and standard times. From the desktop, is a direct welding in memory on the motherboard. The development of notebook memory The real notebook memory starts at 486 times, each has its own brands and models of application memory, or directly to do with PCMICA memory card memory. Experienced a Pentium era, CPU speed has been getting faster and faster, Intel's SDRAM came into being. This notebook full access memory standard memory era, the standard notebook on the market are using the 144 pin of SDRAM SO-DIMM interface, relatively speaking is not very expensive, little difference between product performance. Then later is the DDR (Double Data Rate, Double Data) SDRAM, a DDR266 and DDR333, and other specifications, a Pentium4-M, Pentium-M, P4 core Celeron machines use DDR memory, but also a small number of Pentium3-M The DDR machines into the early era. 2002, Intel 855 GME chipset support for the first DDR333, which has long been in the desktop on the popular books on the DDR400 memory is also popular. In 2005, Intel's Centrino second generation Sonoma platform chosen by 9 xx series of mobile chip design group, an increase of the norms of DDR2 memory support, to ensure the stability of high-frequency front-side bus operator, greater savings in energy consumption. 2006, NAPA platform Intel and AMD dual-core Turion platform full support of the largest capacity of 2 GB of DDR2 667MHz memory, this memory applications reached a peak period of the mainstream; 2007, with individual manufacturers DDR2 800MHz launch of the single-2 GB of memory, officially opened a large notebook memory capacity of universal era, and for the next generation of mobile computing platforms spreading a sunny Avenue.