How much is the minimum configuration of Windows 10 computer hardware?

When the WINDOWS10 Technology Preview was open for download, Microsoft said that if your computer can run Windows 8.1, you can install the Windows 10 Technology Preview.

and Microsoft in order to allow WINDOWS10 to replace the existing legacy Windows system, the WIN10 system hardware requirements are not very high, currently can be determined in addition to Windows 8.1 devices, Windows 8, Windows 7 or even earlier computers running Windows Vista systems could run Windows 10. Simply put, the old machines that use less than 5 years can run fairly smoothly WINDOWS10

Is the Win10 configuration highly required?

Windows 10 Desktop Edition minimum hardware requirements:

Memory Capacity Requirements

-32-bit system minimum requirements 1GB or higher;
-64-bit system minimum requirements 2GB or higher;

Hard Disk Capacity Requirements

-32-bit system minimum required free space above 16GB;
-64-bit system minimum required free space above 20GB;

Video card requirements

--Support DX9 above graphics card;
--resolution 800x600 above;

Important NOTE:

1. To access the Windows application store and download and run the application, you need an Internet connection, at least 1024x768 screen resolution, and a Microsoft account.

2. After you install the preview version, you will not be able to use Windows Media Player to play the DVD.

3. The preview version cannot be run on Windows RT 8.1 and Windows N versions.

4. The preview version is not available for Windows Phone.

5. A few early 64-bit CPUs may be blocked from installing this preview version.

6. It is best to use the mouse and keyboard to operate this preview version. Future updates will increase the touch-control functionality.

7. If you are running Windows 7 without SP1, you can only upgrade to the preview version by downloading the ISO file. If you have Windows 7 SP1 installed, you can use Windows Update or download the ISO file to upgrade to the preview version.