is the interface between a person and a computer, through which the user can exchange information

c. Input and output devices.

b. Control and manage the resources of the computer.

b. Machine language programs.

Multi-technology is the technology that integrates sound, image, text, etc. through the computer. That is, through the computer, the text, graphics, images, sounds, animations and other kinds of synthesis are used to establish a logical connection, and they are sampled, quantized, encoded and compressed, modified, stored, transmitted, and reconstructed and displayed.

At present, the switching mode commonly used in computer network communication is packet switching.

In a computer network, there are ways in which data is exchanged:

2) Message exchange. Messages are transmitted from the sender to the receiver in the form of storage**. When transmitting messages, only one section of the channel is occupied; Buffer storage is required in the switching node, and packets need to be queued. Therefore, this method does not meet the requirements of real-time communication.

3) Packet switching. This method is similar to message exchange, but the packets are sent in groups and the maximum length of the packets is specified, and the packets need to be reassembled into packets when they reach the destination. This is one of the most widely used switching technologies in the network.

Inside a computer, all information is stored, processed, and transmitted using binary numbers.

Binary "00101000" can be converted directly to "28" in hexadecimal. Bytes are the basic storage units in the computer, according to the different length of the computer, the word has different digits, the word length of modern computers is generally 32 bits, that is, the number of bits of a word is 32.

A byte is an 8-bit unit of data, and a byte can represent 0 255 decimal data. For modern computers with a 32-bit word length, a word is equal to 4 bytes, and for early 16-bit computers, a word is equal to 2 bytes.

Inside the computer, all information is stored, processed and transmitted using aBinary numbers.

Answer] Bend this crack: c

Only the memory can directly exchange information with the CPU, and the hard disk and other peripherals cannot directly exchange information with the buried CPU.

The exchange of information between man and computer is realized by Tongzen input and output devices. （）

a.That's right. b.Mistake He Jianheng.

Correct Answer: a

1. Computer system.

The exchange of information with the outside is mainly through the input of the Biyu output device.

2. The input and output device (IO device) is one of the key external devices of the data processing system, which can be used interactively with the computer body. Such as: keyboard, clipboard, microphone, audio, monitor, etc.

Therefore, the input and output equipment plays the role of cavity key connection between the person and the robot operator.

The system is the interface between the user and the machine. （）

a.That's right. b.Mistake.

Correct Answer: a

In a computer system, the key component that enables the exchange of information between the host and external devices is the interface.

The interface between a human and an information machine such as a computer or between a human and a program is called a user interface. The interface between the hardware components of the computer and other information machines is called the hardware interface. The interface between the software components of the computer and other information machines is called the software interface.

In a computer, an interface is a shared boundary between two independent parts of a computer system for the exchange of information. This exchange can take place between computer hardware and software, external devices, or people who operate them, or a combination of them.