DDR RAM(Double Data Rate)
[单选题]The maximum data rate of any single wireless link can be described by the shannon’s theorem which is related to the()in hertz,and the()on the channelA.signal frequency B.bandwidth C.carrier frequency D.noise frequency A.signal B.caeeier C.noise
[单选题]The following data are for a basket of three consumption goods used to meas
[单选题]The following data are for a basket of three consumption goods used to meas
[单选题]union dt { int a;char b;double c; }data; 以下叙述中错误的是( )。A.data的每个成员起始地址都相同B.变量data所占内存字节数与成员c所占字节数相等C.程序段:data.a=5;printf("%f/n",data. C);输出结果为5.0D.data可以作为函数的实参
[单选题]All data are storedin stacked semiconductor dynamic RAM memory boards;the i
[填空题] 目前系统中的DDR类型可分为三种,分别是()类DDR、()类DDR、()类DDR。
[单选题]下面关于DDR SDRAM、DDR2 SDRAM和DDR3 SDRAM的叙述中,错误的是______。A.) DDR SDRAM内部的数据总线宽度是存储器总线的2倍B.) DDR2 SDRAM内部采用了4位预取技术C.) DDR3 SDRAM内部采用了8位预取技术D.) 在一个存储器总线时钟周期内,DDR2 SDRAM传送4次数据,DDR3 SDRAM传送8次数据A.B.C.D.
[单选题]D.DR400和DDR333能否混用?
答:(1)速度更快 (2)省电 (3)新平台,有不同的更多的接口DDR3内存和DDR2比较有什么优势?