The calculator power supply voltage conversion circuit triode BG and the oscillating transformer B, etc. form a typical transformer-reporting oscillating circuit. Transformer B has a total of six windings, of which the 1, 10 and 7.8 end windings are the base and collector windings of BG respectively, that is, the two basic windings that make…
What kind of computing power does the calculator have? I believe everyone is more familiar with it, right? As the most important type of calculators, scientific calculators are good assistants for work, study and research, so you should still clarify the main computing capabilities of scientific calculators. The following is a brief content to illustrate…
What should I do if I don’t bring a calculator for my research! ! The two beauties next to me both have calculators in hand, and my brother silently clicked Start, Programs, Accessories, and opened the calculator. I’m so witty! ! What, you said you can’t switch to another window during the test? ! You…
Now is a high-tech era, and many technological products have been produced in this way. Calculators and computers are the products of this high-tech era. Calculators are of great help to mathematics education in our country. The calculator is now the most powerful tool for students to learn mathematics. I remember that in the past,…
What should I pay attention to when repairing the calculator? You should know that there are field effect components in the calculator, and a slightly higher AC induction current can also damage it. Note that the temperature during the baking and soldering process should not exceed 45 degrees; in addition, when repairing the broken LCD…
Since the emergence of human civilization, computing has played a great role in our lives. Calculators are also a product of technological development. Calculators have many types in our lives and are used in a wide range. It can be said that our lives Calculators are inseparable, so what is the important role of calculators…
Everyone should be familiar with calculators. With the development of science and technology, its development is also great. The size of calculators long ago was very large. And the function is not very complete, it can only do some of the simplest calculation problems. It was invented by the world-famous mathematician Von Ivanov. At that…
A long time ago, we calculated simple addition and subtraction operations through calculations. Multiplication and division operations can only calculate small numbers. Once the numbers become larger, they cannot be calculated accurately. However, the invention of the abacus is already a major advancement in human civilization. With the development of technology, calculators are now the…
A calculator is generally composed of arithmetic unit, controller, memory, keyboard, display, power supply and some optional peripherals. The arithmetic unit and controller of the low-end calculator are realized by the digital logic circuit for simple serial operation, and the random access memory has only one or two units for accumulative storage. High-end calculators are…
This is difficult to answer. I wonder if you are asking about calculator life or battery life? I answered separately. 1. Calculator life The life of the calculator depends on the environment in which it is used. The environment is humid or overheated. The conductive rubber on the calculator keys will quickly deteriorate and will…
