An operating system performs a number of supporting functions.
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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
用16×16点阵来表示汉字的字型,存储一个汉字的字形需用()个字节。
A. 16×1
B. 16×2
C. 16×3
D. 16×4