（）devices take information people can understand and convert them to a form the computer can process.
A.Input输入
B.Output输出
C.I/O
D.Disk磁盘
正确答案是A
（）devices take information people can understand and convert them to a form the computer can process.
A.Input输入
B.Output输出
C.I/O
D.Disk磁盘
正确答案是A