题目内容

The ( ) serves as an interface between hardware and software.

A. system
B. application program
C. operating system
D. control unit

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Most operating system have a standard set of ( ) to handle the processing of all input and output instructions.

A. spreadsheet
B. control instructions
C. I/O operation
D. data table

( ) uses commands that are easier for programmers to understand than are machine language commands.

Assembly language
B. High-level language
C language
D. C++ language

B. Identify the following Sentencesto be True or False (判断下列句子是真是假 )1. A register is a storage location outside the processor. ( )

A. 对
B. 错

The ALU performs arithmetic computations and logical operations. ( )

A. 对
B. 错

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