What is the I O interface used for? The following statements are the most accurate about the I O int

i is the meaning of input. For example, the keyboard inputs information to the host.

o is the output. For example, the screen provided by the display is fed back by the host through the interface.

Personal opinion: I think option B is more correct.

a.An interface is an interface. The controller is another part.

c.It's not accurate to say that the main memory can't do this function alone.

d.When entering and output, other devices need to be called, and the CPU cannot be used to summarize the whole alone.

DVI is a digital interface. Only the monitor and graphics card have a DVI interface can be used, and the effect is not seen to make any difference. However, the DVI interface is the trend.

d...Types of DVI interfaces: The current DVI interfaces are divided into two types, one is the DVI-D interface, which can only receive digital signals, and there are only 8 rows and 8 columns with a total of 88 pins on the interface.

What is the I-o interface used for?

It is the bridge between the CPU and peripherals. following___d___The statement is the most accurate.

a.The IO interface is the IO controller, which is responsible for the connection between the IO device and the host.

b.The IO interface is used to connect the IO device to the host.

c.The IO interface is used to connect the IO device to the main memory.

d.The IO interface is the IO bus, which is used to connect the IO device to the CPU

d, that's the right option. None of what they said was right.

Simple, it is a part of the CPU that exchanges information with external devices, and its main functions are; Complete the connection of peripherals to CPU; Convert the speed of data transfer; Conversion Levels; Convert data format and feedback the status information of the IO device to the CPU, etc.

The function of the IO interface is to be responsible for the CPU to link the IO circuit and peripheral devices together through the system bus, and the hardware of the IO interface is mainly divided into two categories according to the complexity of the circuit and equipment

1) IO interface chip.

Most of these chips are integrated circuits, which input different commands and parameters through the CPU, and control related IO circuits and simple peripherals for corresponding operations, common interface chips such as timing counters, interrupt controllers, DMA controllers, parallel interfaces, etc.

2) IO interface control card.

It consists of several integrated circuits grouped into a component according to a certain logic, either directly on the motherboard with the CPU, or a plug-in plugged into the system bus slot.

According to the connection object of the interface, they can be divided into serial interface, parallel interface, keyboard interface and disk interface.

The IO interface is the medium and bridge for the exchange of information between the CPU and the IO device. The D-bus and I-O devices should be selected.

The function of the IO interface is to enable the CPU to link the IO circuit to the peripherals via the system bus.

CPU external connection is a bus, bus (bus) is a public communication trunk line that transmits information between various functional parts of the computer, it is a transmission harness composed of wires, according to the type of information transmitted by the computer, the computer bus can be divided into data bus, address bus and control bus, respectively used to transmit data, data address and control signal.

between CPU and peripherals.

1) Set the data registration and buffering logic to adapt to the speed difference between the CPU and the peripherals, the interface is usually composed of some registers or RAM chips, if the chip is large enough, it can also realize the transmission of batch data;

2) Ability to convert information formats, such as serial and parallel;

3) Be able to coordinate the difference between the type and level of information between the CPU and the peripherals, such as the level translation driver, digital-to-analog or analog-to-digital converter, etc.;

4) Coordinate timing differences;

5) Address decoding and equipment selection function;

6) Set the interrupt and DMA control logic to ensure that the interrupt and DMA request signals are generated under the condition that the interrupt and DMA are allowed, and the interrupt processing and DMA transmission are completed after receiving the interrupt and DMA response.

Basic functions of the interface.

1. Select the port address decoding device.

2. Provide the CPU with the status information of the IO device and perform command decoding.

3. Carry out timing and corresponding timing control.

4. Provide buffering for the transmitted data to eliminate the difference between the computer and the peripherals in the "timing" or data processing speed.

5. Provide the compatibility transformation of relevant information formats between computers and peripherals. Provide electrical adaptation.

6. It can also realize the exchange of information between the CPU and the peripherals in interrupt mode.

There is a lack of the right option for this question.

The correct question is as follows:

The io interface is located in (e.CPU and external device bodies).

a.Host and IO devices.

b.Host and Main Memory.

c.CPU and main memory.

d.Bus and IO devices.

e.CPU and external device bodiesComputers, in five sections:Combinators, controllers, memory, input and output devices.

IO interface, not a separate part.

The IO interface belongs to the input and output devices.

The IO interface is the gateway to input and output devices.

IO interfaces, i.e., input and output devices.

Many textbooks are made up blindly. Its author, who does not understand computers at all. Only this answer is correct.

The Io interface is located at C

a.Between the host and the IO device bbetween the host and the bus.

c.Between the bus and the IO device dbetween CPU and storage.

Hope it helps.

The CPU can only communicate with [memory, IO interface] to transmit information.

Of course, you can also develop a new type of CPU. The io interface, which is the gateway to external devices.

An external device must have an IO interface in order to connect to the CPU.

An IO interface, broken down, can also be divided into several ports.

For example, status ports, data ports, command ports, etc.

The Io interface means the input interface and the output interface, for a computer must have at least one input interface and one output interface, otherwise it is meaningless.

port"It is a paraphrase of English port, which can be regarded as the outlet for communication between the equipment and the outside world.

Ports can be divided into virtual ports and physical ports, where virtual ports refer to ports inside a computer or a switch router and are invisible.

It can be said that a "port" is a kind of I.O. interface.

The io interface, which is the gateway to external devices.

An external device must have an IO interface in order to connect to the CPU.

An IO interface, broken down, can also be divided into several ports. They are the status ports. data ports and much more.