Most UNIX implementations use the same type of addressing as other modern Operating Systems, which include page translation, segmentation, and virtual memory addressing.
Use the 'ifconfig' command to retrieve the addressing information and adapters on the system.
Use the 'mkdir' command
You should be able to download the Unix Services for Windows, version 3.5, from Microsoft (free). There are other shell emulators that are available for Windows, which would allow you to use Unix type shell scripting without installing any additional OS. Your question about "virtual UNIX" is unclear ..
There is no traditional 'execute' command in Unix.
It is possible to use BSD software on Unix systems. It is possible but many do not and they use other softwares on Unix systems beside the BSD software.
Unix can be used on a large number of mainframes, servers, and workstations. If you would like to use a certified UNIX system on commodity hardware, Solaris 10 can be downloaded free of charge for non-commercial use.
IPv4 was the first used network addressing scheme from the 1970s. IPv6 is newer and not compatible with version 4. It will take some time to upgrade the software and equipment to be able to fully use v6.
Yes, quite a bit of companies and users use unix.
scheme is where you make plans
Yes you can. Unix understands both FAT32 and NTFS file systems.
In Unix, use the 'man' command.
Use useradd command