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软考之旅再进京， 二度北上赴考程

/ 2 min read

1 CPU组成

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2 计算机基本单位计算

单位

最小单位：位(比特) bit b

字节 byte B 1B=8b

千字节 KB 1KB=1024B

兆字节 MB 1MB=1024KB

吉字节 GB 1GB=1024MB

太字节 TB 1TB=1024GB

计算机中最小的数据单位：1b；最小的存储单位：1B

进制转换

按权展开求和 n进制转十进制

除n取余法 十进制转n进制

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3 原码、反码、补码

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移码=补码符号位取反即可。

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4 浮点数

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错误：正确答案：D、D

(3)A：阶码长度决定数值范围、尾数表精度；无问题

(4)D：先统一两个数的阶码！

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理解错误：尾数向右移动了，小数点向左移动

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5 寻址

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答案：D

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6 校验码

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7 RISC、CISC

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8 流水线

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9 存储器

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10 Cache

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11 中断

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12 IO控制方式

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13 总线

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14 加密、认证

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非对称：公加认；私解签

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15 加密算法

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16 系统可靠性

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17 程序语言

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18 程序语言基础

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19 实参、形参调用

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答案：B D

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20 编译、解释过程

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错了，答案：B

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21 正规式

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22 有限自动机

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正确答案：D

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23 上下文无关文法

语法规则！

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24 后缀前缀中缀表达式

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25 著作权

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26 计算机软件著作权

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