Simple calculator design 50, a simple calculator is mainly made up of what and what

Simplified Fraction Calculator Find the reduced or simplest form of fraction using the Simplification Fraction Calculator for a given whole trillion let bundle of fractions. However, decimals cannot be calculated. Flexible use of algorithms, sexual slippery quality, make the calculation easy.

According to the characteristics of the problem, other methods such as family cherry blossom reduction and disassembly law are used to make the calculation simple.

A simple calculator is mainly composed of a combinator, a controller, a memory, a keyboard, and a display.

1. Combinator.

The combinator is the core part of the calculator and is responsible for the calculation of various numbers. It usually consists of parts such as adder, subtractor, multiplier, divider, and modulator. These parts can complete basic number operations, such as addition, subtraction, multiplication and division, remainder, etc.

2. a controller.

The controller is the command center of the calculator and is responsible for controlling the work of the individual components and coordinating the interaction between the combinator, the memory, the keyboard and the display.

3. Memory.

The memory is the memory part of the Douzi Mill Calculator, which is used to store the data and comma sequence of the calculator. Memory is usually divided into two types: memory and external memory. Memory is the temporary memory of a calculator to store the data and programs that are being calculated.

4. Keyboard. The keyboard is the input part of the calculator and is used to enter the numbers and symbols that the calculator does to calculate. A keyboard usually consists of a number key, an operator key, a clear key, a back key, and so on.

5. a display.

The display is the output part of the calculator and is used to display the results of the calculator's calculations. The display usually adopts a liquid crystal display or LED digital tube display.

1. First of all, create a new text file named "Calculator". txt", you can also name something else, but not without the suffix".txt”。

2. Double-click to open, enter Notepad, use Notepad for the first time, first familiarize yourself with the interface, the white area is the area, there is a title at the top, there is a toolbar in the middle of the title and the area, and the bottom of this interface is the state.

3. This step is very important, and you need to enter some **.

4. The last step, in the status bar, determine whether there is an area to display ANSI, if not, please click the file tab, click Save As in the menu, and the dialog box that pops up is named "Calculator" in Chinese. VBE", the type is All Files, and the encoding is ANSI. If you have ANSI, then you write down the difference sign first, there is a dialog that asks you if you want to save, click the save button, and rename the file to "Calculator". vbe”。

Extended Information: The keys on the calculator mean the following:

1. Power-on, all-clear keys (on, AC): Press the button to indicate power-on, or clear the values in all registers.

2. Clear key (C): During digital input, pressing this key for the first time will clear all values except the memory contents.

3. Clear input key (CE): Pressing this key during digital input will clear the value in the input register and display it"0"。

4. Square root check: displays a square root with a positive input number.

5. M+: Put the currently displayed value in the memory; Interrupt the digital input.

6. m-: subtract the current display value from the memory content; Interrupt the digital input.

7. MRC: The first time you press this key, the memory content will be called, and the memory content will be cleared when you press it the second time.

8. mr: call the memory content.

9. MC: Clear the contents of the memory.

10. GT: Press the GT key to transfer the contents of the GT memory register to the display register; Press the AC or C key to remove the GT display flag.

11. MU (Mark-Up and Mark-Down keys): Press the key to complete the calculation of interest rate and tax rate.

12. MRC: The first time you press this key, the memory content will be called, and the memory content will be cleared when you press it the second time.

Steps to use the calculator.