What is the logical function of a computer?

The logic function is the passing and processing of discrete signals to binary.

For the principle, the digital signal is realized.

Logical operations and operations.

The most basic ones are related to logic circuits, or logic circuits, and non-logic circuits.

Logic circuits are divided into combination logic circuits and sequential logic circuits.

Combined logic circuits consist of the most basic "and gates."

circuits, "OR gates", and "NOT gates."

The output value of the circuit depends only on the current value of its input variable, independent of the past value of the input variable (i.e., it does not have memory and storage functions).

Sequential logic circuits also consist of basic logic gate circuits, but there is a feedback loop, and its output value depends not only on the current value of the input variable, but also on the past value of the input variable.

Because it is only divided into high and low levels, it has strong anti-interference force, good accuracy and confidentiality. It is widely used in computers, digital control, communications, automation and instrumentation.

Discharge cooling is another type of convection cooling. Unlike regenerative cooling, the coolant used for exhaust cooling absorbs heat to the thrust chamber and is discharged out of the combustion chamber instead of entering the combustion chamber to participate in combustion. Direct drain coolant reduces the thrust chamber specific impulse, so the coolant flow for drain cooling needs to be minimized while only using drain cooling at the outlet section of the nozzle that is relatively less heated.

There is also radiative cooling, in which the heat flow is transferred from the combustion products to the thrust chamber, and then the heat is radiated by the thrust chamber wall to the surrounding space. Radiative cooling is characterized by simplicity and small structural mass. It is mainly used in the extension section of large nozzles and the thrust chamber of small thrust engines using high-temperature resistant materials.

When cooling in the thrust chamber of the tissue, a relatively low temperature liquid or gas protective layer is established on the surface of the thrust chamber wall to reduce the heat flow to the thrust chamber wall, reduce the wall temperature, and achieve cooling. Internal cooling is mainly divided into three methods: internal cooling (shield cooling), membrane cooling and diaphoretic cooling of head tissues. After the internal cooling measures are adopted in the thrust chamber, the mixing ratio near the wall of the combustion chamber is different from the optimal mixing ratio in the central area (in most cases, the near-wall layer rich in fuel is used) due to the need to reduce the temperature of the protective layer, resulting in the uneven distribution of the mixing ratio along the cross-section of the combustion chamber, so that the combustion efficiency is reduced to a certain extent.

Membrane cooling is similar to shield cooling in that it cools the thrust chamber wall by establishing a uniform and stable coolant film or air film protective layer near the inner wall surface, except that the coolant used to establish the protective layer is not injected by the injector, but is supplied through a special cooling belt. The cooling band is generally arranged in a cross-section of the combustion chamber or the convergence section of the nozzle. There can be several cooling bands along the length of the combustion chamber.

In order to improve the stability of the membrane, the coolant often flows through the gaps or small holes in the cooling belts, and when sweating is used, the thrust chamber wall or part of the inner wall is made of porous material with a pore diameter of tens of microns. Porous materials are usually sintered with metal powders or pressed with metal mesh. In this case, the number of pores per unit area is increased by making the micropores in the material as evenly distributed as possible.

The liquid coolant penetrates into the inner wall, creating a protective film that reduces the density of the heat transferred to the wall. When the flow rate of liquid coolant used for sweat cooling is above a certain threshold, a liquid film is formed near the wall of the thrust chamber. When the coolant flow rate is below the critical flow, the inner wall temperature will be higher than the coolant boiling point at the current pressure, and some or all of the coolant will evaporate, forming an air film.

In addition to the above thermal protection, there are other thermal protection methods such as: ablation cooling, thermal insulation cooling, hot melt cooling and composite protection of chamber walls. 3. Thermal protection scheme of high enthalpy gas generator Based on the above methods and the actual situation, the thermal protection method of high enthalpy gas generator is obtained.

The combustion chamber of a high-enthalpy gas generator differs from that of a liquid rocket engine, eliminating the front thrust chamber part, making its structure simpler and more effective. Then, the thermal protection involved is the thermal protection part of the combustion chamber wall. As the fuel enters the combustion chamber, it quickly decomposes and releases large quantities.

There are four logical operations, namely Logic AND (and), Logic OR (or), Logic NOT (not), and Logic XOR.

Logical operations are often used to test true or false values. The most common logical operation is loop processing, which is used to determine whether to leave the loop or continue to execute instructions in the loop. Logical operations include union, intersection, and subtraction.

This logical operation method is used in the graphics processing operation to make the simple basic graphics combination produce new shapes, and the logical operation from two-dimensional logic operations to three-dimensional graphics is developed.

Due to the special contribution of Boolean in symbolic logic operations, many computer languages refer to logical operations as Boolean operations, and their results as Boolean values. The most common logical operation is loop processing, which is used to determine whether to leave the loop or continue to execute instructions in the loop.

The three types of AND and OR or NOT are the most basic, and there are also the more commonly used XOR (XOR).

Hello, there are four kinds of logic and (and), logic or (or), logic not (not), logic or (xor).

Logical with, logical or, logical not. Logical XOR four

A computer is an electronic device capable of executing instructions, processing data, and making calculations. The logical calculation function of a computer means that it can perform various logical operations and logical judgments, including arithmetic operations such as addition, subtraction, multiplication, and division, as well as logic gate operations such as and, or, non, and slow gate operations.

The logical computing function of a computer is realized by its hardware structure. Inside the computer, there are various logic combinators and logic controllers, which can perform various logical operations and logical judgments. Computers can also interact with the outside world through input and output devices to obtain and process a variety of information.

A computer's logical computing capabilities are the basis for its ability to implement a variety of computer applications. For example, computers can be used in data processing, algorithm computing, control logic and other application fields, so as to achieve a variety of intelligent applications.

In simple terms, the logical computation functions of a computer are controlled by combinators.

Short answer: 1) The automation program has a high degree of state and strong processing capacity.

2) Fast computing speed and strong processing power.

3) It has a high accuracy of calculating the beating.

4) It has the memory function of large storage capacity.

5) It has the function of logical judgment.

More details are as follows:

1) High degree of automation and strong processing capacity.

Computer logic operations are a set of operations performed by a computer while processing data to verify that the data satisfies specific logical conditions. Logical operations usually include operations such as AND, OR, NOT, XOR, etc.

These logical operations are used to determine whether the data meets certain conditions. For example, in a calculator, a logical operation can be used to verify that the input number is 0, whether it is greater than 0, whether it is less than or equal to 0, and so on. In computer programs, logical operations can be used to verify that the data entered by the user meets the requirements of the program, or to perform conditional judgments and logical operations.

The implementation of computer logic operations is achieved through the binary logic circuits of computers. Logic circuits are composed of various logic gates, registers, counters, etc., which can be combined to implement various logic operations. In computers, the results of logical operations are usually achieved through Boolean algebra operations.

The computer logic meta-arithmetic you are talking about, first understand three concepts from the conceptual hands:

"Gate" is a circuit that stipulates that the signal output is only available when a certain logical relationship between each input signal is satisfied, and there are usually the following three types of gates: AND gate, or gate, and NAND gate (inverter).

From the perspective of logical relationship, there are only two states at the input or output end of the gate circuit, no signal is represented by "0", and some signal is represented by "1". It can also be specified as follows: the low voltage is "0" and the high level is "1", which is called positive logic.

On the contrary, if the high level is "0" and the low level is "1", it is called negative logic, however, high and low are relative, so it is of practical significance to choose what logic to use in the actual circuit, for example, negative and gate have a relationship of "and" for "1", but for "0", there is a relationship of "or", that is, negative and gate is also positive or gate; In the same way, a negative or gate has an "or" relation to "1", but an "and" relation to "0", i.e., a negative or gate is also a positive and a gate.

The logical operation is:

And yes"with"1+0=1 1+1=1 0+0=0 0+1=1NORs"or"1+0=1 0+0=0 1+1=1 0+1=1xor is"XOR" 1+1=1 0+0=1 1+0=0 0+1=0

The operating logic of a computer typically consists of the following steps:

Input: Enter data from external devices such as keyboards, mice, scanners, etc.

Storage: Stores the entered data in the computer's memory.

Processing: Execute instructions through the ** processor (CPU) to process and calculate the input quiet or explicit data.

Output: Outputs the processed results to external devices such as monitors, printers, etc.

Storage: The processed data is stored in the memory of the computer or an external storage device.

In practice, these steps may be staggered, but in general they can still be seen as a process in the order of input, processing, and output.

In terms of logical function, computer hardware mainly includes the first processor (CPU), internal memory, external memory, input equipment and output equipment.

The original title of this question is that in terms of logical function, computer hardware mainly includes ** processor (CPU), internal memory, external memory, input devices and output devices, etc., which are connected to each other through (a). a, bus; b. a control line; c. a data cable; d. Address line.

Computer hardware refers to a general term for various physical devices in a computer system composed of electronic, mechanical, and optoelectronic components. These physical devices form an organic whole according to the requirements of the system structure, and provide the material basis for the operation of computer software. In a nutshell, the function of computer hardware is to input and store programs and data, and to execute programs to process the data into a usable form.

If the user needs it, the data is output in the manner requested by the user.

Summary. The logic of the circuit is the logic in the transistor, which is what you call 0 and 1;

The logic of the computer is the logic of development, the basis of which is still 0 and 1; But there is a lot of content, and the more cutting-edge is mathematical logic.

The more popular ones are logical operations; There are four types in total: Logical AND (and), logical OR (or), logical NOT (not), and logical XOR

This ......There is no need for examples.

For example, "or" has the meaning of adding or taking the greater, but it is different, specifically 0 or 0=0;0 or 1=1；1 or 0=1；1 or 1=1

Why can computers have the function of logical judgment?

The logic of the circuit is the logic in the transistor, which is what you call 0 and 1; The logic of the computer is the logic of development, the basis of which is still 0 and 1; But there is a lot of content, and the more cutting-edge is mathematical logic. The more popular ones are logical operations; There are four types of ......: Logic AND (AND), Logic OR (OR), Logic NOT (NOT), and Logic XORThere is no need for examples, for example, "or" has a kind of meaning of adding or taking large, but it is different, specifically 0 or 0=0;0 or 1=1；1 or 0=1；1 or 1=1

Can you give an objective answer?

Computer-based exam questions.

It is the compiled software that gives the computer the ability to make logical judgments.