The calculator has always been a very popular device. With the advent of computers and operating systems, this electronic computing device suddenly became much closer and easier to use, while receiving many additional functions. In Windows OS, the program has a simple, engineering and software calculator, as well as a date calculation function.
For personal computer users who often resort to using a calculator, there are hot keys on the keyboard that serve to quickly call the program. This simplifies the path to the billing device and also saves the user's time.
This article will discuss how to turn on the calculator on the keyboard, what functions it has, and how to work with this system program in the Windows operating system.
What functions does the calculator provide in the Windows operating system
As mentioned before,The modern Windows 7 operating system has given the calculator a lot of user-friendly features. Let's see what can be calculated using the standard Windows program.
First of all, this application has a simple calculator. It is the base on which, in turn, the entire calculation algorithm is built. By the way, for the average user it is quite enough. But the functions of the calculator in the Windows environment do not end there.

Instead of buying a rather cumbersome calculator for complex calculations by today's standards, Microsoft provides an engineering calculator in its operating system for a computer. It will allow you to make calculations taking into account cosines, sines, roots and other mathematical elements, using only your PC. Many users are not even aware of the variety of functions provided by the calculator based on the Windows operating system.
How to turn on the calculator in the standard way
It is quite possible to turn on the calculator on the keyboard by pressing a certain key combination. But to complete this task, you yourself need to set certain launch parameters, which will be discussed below. First, let's figure out where the Windows 7 calculator is on the computer, how to turn it on in the standard way. To access the calculator using the classic method, follow the guide below:

- Click the button"Start".
- Then click on the "All Programs" button at the bottom of the "Start" menu.
- Find the "Standard" folder in the list that opens, then open it.
- Find "Calculator" in the list and run it.
You can also use a simpler method by entering the word "Calculator" in the Windows search box, and then launching the program from the search results. In order to do this, click the "Start" button, at the bottom of the main menu of the OS, enter your request in the search bar, after a while it will be displayed in the system interface.
How to run an engineering software calculator on Windows
In order to launch the desired mode of the calculator, you do not need to resort to unthinkable things. Follow the instructions below to get started:

- Start "Calculator".
- In the window that opens, go to the "View" tab.
- From the list that opens, find the program mode you need.
- Set the checkbox next to the selected mode.
After completing these operations, you will be able to use the calculator and its functions to the full.
How to enable the calculator on the keyboard
To launch the application with hotkeys, as mentioned earlier, they must be set. To quickly launch the program, there are hot keys of the calculator. But unfortunately there is no default command to callthis program because it is disabled in the launch settings. Follow the instructions, referring to the image, in order to launch the calculator on the keyboard:

- Press the start button.
- Then go to the "All Programs" tab.
- Go to the "Standard" folder.
- Find "Calculator" from the list and right-click on it.
- From the context menu that appears, click on the "Properties" button.
- In the upper part of the window that opens, go to the "Shortcut" tab.
- In the item "Quick call", which is set to "No", specify your key to quickly call the program, for example, F10 or Ctrl+Alt+NumLock.
- Click "Apply" and then "OK".
If you did everything as described above, you can go to the next section and try to start the calculator from the keyboard, we'll talk about this later.
Turn on the calculator using the keyboard command
So, we figured out how to turn on the calculator on the keyboard, now let's go directly to the launch. Let's assume that you have set this key combination: Ctrl + Alt + Num Lock. Now you need to hold each of the keys in turn, after which the calculator should start.

It's quite simple, and now it will be much easier for you to launch this application. But, if the program does not start bykeystrokes, you should re-execute the above guide. For your information, you can change the key assignment at any time.
Conclusion
From this material you could learn how to turn on the calculator on the keyboard, that is, how to set a command to call the program with hot keys. You also learned what functions a calculator running on the Windows operating system has. And also how to enable it for programming, date calculation and for performing engineering calculations. The presented operations are very simple, so anyone can perform them.