What system is installed on the computer should be based on the configuration of the computer and your hobbies. The basis is: 1. The number of CPU cores is single core, which is suitable for installing XP system. 2. If the number of CPU cores is dual core or more, WIN7 or WIN8 can be installed. 3. The memory is below 2G (excluding 2G), and only XP can be installed. 4. WIN7 or WIN8 can be installed when the memory is more than 2G (including 2G). 5. The memory is below 4G (excluding 4G), and only 32-bit systems need to be installed. 6. If the memory is more than 4G (including 4G), a 64 bit system needs to be installed. 7. On the basis of installing WIN7 or WIN8 systems, you can choose to install systems according to your personal preferences.
Yes, it is. It is a hyper threading technology. For example, I can use a dual core CPU, but when I go to the computer screen, it will display four cores. But that is only the display, not the real four cores. Let me ask you how you changed the computer from multi-core to single core.How many cores are your CPU
If you are mainly going online and working, you can also consider the compact version of Windows 7 or Zorin OS to avoid applications that consume too much resources
Considering the speed and resource management, Windows XP may be a good choice. Although it is a little old, it is less burdensome for a single core machine
Although single core computers have limited performance, you can choose lightweight Linux systems, such as Ubuntu or Manjaro, which are optimized very well and run smoothly
