合理化408命名,初步测试webp格式及图床
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@ -238,8 +238,8 @@ uglyURLs = false
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identifier = "mathematics"
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[[menu.main]]
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pageref = "/408/"
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name = "408"
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pageref = "/ComputerBasics/"
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name = "基础"
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weight = 4
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pre = "internal"
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post = "cubes"
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@ -113,7 +113,7 @@ date: 2023-07-05T14:13:34+08:00
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* 根据CPU的命令对相应设备发送命令
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* 用于实现设备控制功能
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* 组成图
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* 
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* 
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### 设备控制器的三种寄存器(可被CPU直接访问的寄存器,也叫IO端口)
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@ -173,7 +173,7 @@ date: 2023-07-05T14:13:34+08:00
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* 每个DMA控制器对应一台设备与内存传递数据
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* DMA方式主要用于块设备,磁盘尤其是典型的块设备
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* 示例图
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* 
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* 
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### 通道控制方式
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@ -189,7 +189,7 @@ date: 2023-07-05T14:13:34+08:00
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* 通常包含许多非分配型字通道,数量可以达到几十到几百个,每个通道连接一台IO设备,并控制该设备的IO操作
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* 常用于连接大量低速或中速IO设备
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* 示例图
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* 
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* 
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### 四种方式比较
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@ -247,7 +247,7 @@ date: 2023-07-05T14:13:34+08:00
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### 设备分配依据的数据结构
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* 设备、控制器、通道间的关系
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* 
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* 
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* 设备控制表(DCT)
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* 系统为每个设备配置一张DCT
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* 用于记录设备情况
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@ -27,4 +27,4 @@ date: 2023-09-12T21:08:00+08:00
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