18、模拟信号在数字信道上传输前要进行()处理,数字数据在模拟信道上传输要进行()。

8、SQL is a standard computer language used to and process databases.

7、In each of these scenarios, the common thread is that the user, regardless of its constitution, is given the of accessing data as an abstract tool.

6、6.Recall that the various cells in a machine’s main are identified by numeric addresses.

5、A register is a storage the processor.

4、The and logic unit ( ) is the functional unit that provides the computer with logical and computational capabilities.

3、The CPU is the most complex computer system component, responsible for most of the computer system activities based on the instructions provided.

2、A supercomputer can handle gigantic amounts of scientific computation.It may be about 50,000 times than a microcomputer.

1、It’s to find a field in which computers are not being used.

464、Internet网络层IP 协议目前应用最为广泛。试根据你对IP 协议的理解,讨论以下问题:1) Internet中没有两台或两台以上的主机或路由器可以同时使用同一个I P 地址。此论点正确吗?为什么?(3 分)2 ) 连接在Internet中的一台主机或路由器只能有一个I P 地址。此论点正确吗?为什么?(3 分)3 ) 有一台主机的IP 地址是” 192.41.256.2 0”,你认为这个LP地址有没有错误?为什么? (4 分)

463、试述路由器的工作原理及主要功