Yes, you can.
Microsoft
Yes.
What are the advantages and disadvantages of OS2?
OS/2 is a computer operating system, initially created by Microsoft and IBM, then later developed by IBM exclusively. The name stands for "Operating System/2," because it was introduced as part of the same generation change release as IBM's "Personal System/2 (PS/2)" line of second-generation personal computers.
Microsoft stopped working with IBM on OS/2 due to disagreements over the direction of the operating system. IBM wanted OS/2 to be a proprietary system, while Microsoft believed in a more open approach. Additionally, Microsoft shifted its focus towards developing Windows as its primary operating system, leading to the dissolution of the partnership with IBM on OS/2.
Windows NT
Windows NT
os2
There were many models in the IBM Aptiva line. Some are capable of running XP either right out of the box or with a memory upgrade. others are not capable of being upgraded enough to run XP. Without information on your model, it is impossible to say what upgrades, if any, are possible or needed.
Oxygen sulfide
No.
It is not connected to Windows 7 in any way. Mac OS2 introduced multiple folders, a "Shut Down" command and Screenshots. That is the only similarities to Windows 7.