Operating systems are not unique to their manufacturers and the hardware in which they are run.
查看答案
An operating system performs a number of supporting functions.
A. 对
B. 错
1. They believe that such books are of no ______.
A. using
B. misuse
C. utility
2. Don't be discouraged if you produce something initially other people _________ as a toy.
A. regard
B. dismiss
C. speak of
D. think of
英国数学家巴贝奇1822年设计了一种程序控制的通用（）。
A. 加法器
B. 计算机
C. 大型计算机
D. 分析机
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