【单选题】Matrix's first product is a memory chip—an easier design and manufacturing task than a full-blown microprocessor chip of the sort that provides the guts of a computer. ________________________________...
A.
But, while that solves one problem, it creates another. For making such a multistory chip is hard.
B.
But the real principal advantage of matrix's memory chip is cost. The 64 megabyte version, which can hold about two hours-worth of music, costs less than $10.
C.
For this obvious disadvantage, the multi-story chip is still under intensive research and experts say it still takes years before they are successfully marketed.