Your question is too vague; what kind of graphic and what do you intend to do with it?
Either with svgalib or X11 (the latter is the good choice;)
MS DOS primarily. LINUX/UNIX is best controlled with out it.
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.
Yes, quite a bit of companies and users use unix.
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 ..
No it is not necessary to use graphic organizer for brainstorming.
Yes you can. Unix understands both FAT32 and NTFS file systems.
In Unix, use the 'man' command.
Use useradd command
what kind of material do a graphic designer use
The possessive form of the noun graphic is graphic's.Example: We have permission from the graphic's creator to use it in our publication.