卷积的输入输出通道_输入/输出通道

卷积的输入输出通道

A channel is an independent hardware component that co-ordinate all I/O to a set of controllers. Computer systems that use I/O channel have special hardware components that handle all I/O operations.

通道是一个独立的硬件组件，可将所有I / O协调到一组控制器。 使用I / O通道的计算机系统具有处理所有I / O操作的特殊硬件组件。

Channels use separate, independent and low cost processors for its functioning which are called Channel Processors.

通道使用单独的，独立的且低成本的处理器来实现其功能，这些处理器称为通道处理器。

Channel processors are simple, but contains sufficient memory to handle all I/O tasks. When I/O transfer is complete or an error is detected, the channel controller communicates with the CPU using an interrupt, and informs CPU about the error or the task completion.

通道处理器很简单，但是包含足够的内存来处理所有I / O任务。 当I / O传输完成或检测到错误时，通道控制器使用中断与CPU通信，并通知CPU错误或任务完成。

Each channel supports one or more controllers or devices. Channel programs contain list of commands to the channel itself and for various connected controllers or devices. Once the operating system has prepared a list of I/O commands, it executes a single I/O machine instruction to initiate the channel program, the channel then assumes control of the I/O operations until they are completed.

每个通道支持一个或多个控制器或设备。 通道程序包含通道本身以及各种连接的控制器或设备的命令列表。 操作系统准备好I / O命令列表后，它将执行一条I / O机器指令来启动通道程序，然后通道将承担对I / O操作的控制，直到完成操作为止。

IBM 370 I / O通道 (IBM 370 I/O Channel)

The I/O processor in the IBM 370 computer is called a Channel. A computer system configuration includes a number of channels which are connected to one or more I/O devices.

IBM 370计算机中的I / O处理器称为Channel 。 一种计算机系统配置，包括连接到一个或多个I / O设备的多个通道。

I / O通道类别 (Categories of I/O Channels)

Following are the different categories of I/O channels:

以下是I / O通道的不同类别：

复用器 (Multiplexer)

The Multiplexer channel can be connected to a number of slow and medium speed devices. It is capable of operating number of I/O devices simultaneously.

多路复用器通道可以连接到许多低速和中速设备。 它能够同时操作多个I / O设备。

选择器 (Selector)

This channel can handle only one I/O operation at a time and is used to control one high speed device at a time.

该通道一次只能处理一个I / O操作，并且一次只能控制一个高速设备。

块复用器 (Block-Multiplexer)

It combines the features of both multiplexer and selector channels.

它结合了多路复用器和选择器通道的功能。

The CPU directly can communicate with the channels through control lines. Following diagram shows the word format of channel operation.

CPU可直接通过控制线与通道进行通信。 下图显示了通道操作的字格式。

The computer system may have number of channels and each is assigned an address. Each channel may be connected to several devices and each device is assigned an address.

该计算机系统可以具有多个通道，并且每个通道都分配有一个地址。 每个通道可以连接到多个设备，并且为每个设备分配一个地址。

翻译自: https://www.studytonight.com/computer-architecture/input-output-channels

卷积的输入输出通道