【填空题】 There are three methods to synchronize the CPU and the I/O device: ____I/O, ____I/O and ____.
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【判断题】 To run an instruction in a program, the CPU first decode it. ( ) 对 ( ) 错
A. 对
B. 错
【判断题】To run an instruction in a program, the CPU first fetch the instruction from memory. ( ) 对 ( ) 错
A. 对
B. 错
【判断题】 The total number of uniquely identifiable locations in memory is called address space. ( ) 对 ( ) 错
A. 对
B. 错
【判断题】 RAM can be read from and written to by the user. ( ) 对 ( ) 错
A. 对
B. 错