有一个2048K×16位的存储器，由若干片256K×8位的DRAM芯片构成。问： （1）需要多少片DRAM芯片？ （2）该存储器需要多少字节地址位？ （3）画出该存储器与CPU连接的结构图，设CPU的接口信号有地址信号、数据信号、控制信号MREQ#和R/W#。

某计算机主存容量为64KB,其中ROM区为4KB,其余为RAM区,按字节编址。现要用2K×8位的ROM芯片和4K×4位的RAM芯片来设计该存储器,则需要上述规格的ROM芯片数和RAM芯片数分别是( )

计算机主存储器由（）存储器（RAM）和只读存储器（ROM）构成。

计算机的内存由RAM和ROM两种半导体存储器组成。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

一个24位地址和8位字长的存储器由4MX1位的RAM芯片组成，若数据总线为8位，问需要多少位作为片选（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。