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  <title>TimberKito · 计算机基础</title>
  <subtitle>计算机、网络、数据库与信息技术基础笔记。</subtitle>
  <link rel="self" type="application/atom+xml" href="https://timberkito.com/categories/ji-suan-ji-ji-chu/atom.xml"/>
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  <updated>2022-03-08T00:00:00Z</updated>
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  <entry xml:lang="zh">
    <title>计算机新技术与应用</title>
    <published>2022-03-08T00:00:00Z</published>
    <updated>2022-03-08T00:00:00Z</updated>
    <author><name>TimberKito</name></author>
    <link rel="alternate" type="text/html" href="https://timberkito.com/posts/emerging-computing-technologies/"/>
    <id>https://timberkito.com/posts/emerging-computing-technologies/</id>
    <summary type="html">&gt; - 网络层主要完成信息传递和处理 &gt; - 应用层主要完成数据的管理和数据的处理，并将这些数据与各行业应用的结合</summary>
  </entry>
  <entry xml:lang="zh">
    <title>信息安全基础</title>
    <published>2022-03-08T00:00:00Z</published>
    <updated>2022-03-08T00:00:00Z</updated>
    <author><name>TimberKito</name></author>
    <link rel="alternate" type="text/html" href="https://timberkito.com/posts/information-security-fundamentals/"/>
    <id>https://timberkito.com/posts/information-security-fundamentals/</id>
    <summary type="html">信息安全基础的技术实践与学习记录。</summary>
  </entry>
  <entry xml:lang="zh">
    <title>多媒体技术基础</title>
    <published>2022-03-07T00:00:00Z</published>
    <updated>2022-03-07T00:00:00Z</updated>
    <author><name>TimberKito</name></author>
    <link rel="alternate" type="text/html" href="https://timberkito.com/posts/multimedia-technology/"/>
    <id>https://timberkito.com/posts/multimedia-technology/</id>
    <summary type="html">多媒体技术基础的技术实践与学习记录。</summary>
  </entry>
  <entry xml:lang="zh">
    <title>计算机基础知识</title>
    <published>2021-12-02T00:00:00Z</published>
    <updated>2021-12-02T00:00:00Z</updated>
    <author><name>TimberKito</name></author>
    <link rel="alternate" type="text/html" href="https://timberkito.com/posts/computer-fundamentals/"/>
    <id>https://timberkito.com/posts/computer-fundamentals/</id>
    <summary type="html">十进制整数可以精转，十进制小数可能会除不尽 指令寄存器在控制器内 地址总线：传递地址信息 数据总线：传递数据信息 控制总线：传递控制信号 直接接上I/O总线，使I/O设备更换困难，而且计算机性能下降</summary>
  </entry>
  <entry xml:lang="zh">
    <title>计算机网络技术</title>
    <published>2021-12-02T00:00:00Z</published>
    <updated>2021-12-02T00:00:00Z</updated>
    <author><name>TimberKito</name></author>
    <link rel="alternate" type="text/html" href="https://timberkito.com/posts/computer-network-fundamentals/"/>
    <id>https://timberkito.com/posts/computer-network-fundamentals/</id>
    <summary type="html">&gt; 1.用于屏蔽IP地址的一部分以区别和标识 &gt; 2.将一个大的IP网络划分为若干小的子网络，减少IP的浪费 &gt; 集线器本质上是中继器工作在物理层 &gt; 交换机工作在数据链路层</summary>
  </entry>
  <entry xml:lang="zh">
    <title>数据库与 Access</title>
    <published>2021-12-02T00:00:00Z</published>
    <updated>2021-12-02T00:00:00Z</updated>
    <author><name>TimberKito</name></author>
    <link rel="alternate" type="text/html" href="https://timberkito.com/posts/database-and-access/"/>
    <id>https://timberkito.com/posts/database-and-access/</id>
    <summary type="html">&gt; 传统的关系运算：交、并、差、广义笛卡尔积 &gt; 专门的关系运算： &gt; 选择：选择满足指定条件的元组 &gt; 投影：选择某些属性 &gt; 连接：两个关系的笛卡尔积中选取属性间满足的一定条件的元组</summary>
  </entry>
  <entry xml:lang="zh">
    <title>网页制作基础</title>
    <published>2021-12-02T00:00:00Z</published>
    <updated>2021-12-02T00:00:00Z</updated>
    <author><name>TimberKito</name></author>
    <link rel="alternate" type="text/html" href="https://timberkito.com/posts/web-page-fundamentals/"/>
    <id>https://timberkito.com/posts/web-page-fundamentals/</id>
    <summary type="html">&gt; 图片文件的扩展名有bmp、png、jpg等，属于默认的图像文件的扩展名为png。</summary>
  </entry>
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