When you install programs they go on your hardrive not your RAM. So the answer is no.
If you are planning to install the 32-bit version of Windows 7 and your graphics card supports Windows Aero (glass effects), then yes, it is possible. However, if it is the 64-bit version you want, then no, because your computer fails to meet the minimum RAM requirement of 2 GB.
Whatever memory your motherboard can support but a 64bit version of Windows is needed to manage more than 4GB of RAM. Generally people use 32bit version ram for all the Windows Operating Systems. So for that it is enough to have 1GB ram. I think 1 GB ram is more than enough for it. In case If you prefer to choose a 32 Bit version of Windows 7 Then you have to upgrade your hardware to 1GB or more than that.
Aero
At least 2GB of RAM is needed (2048MB)
You can only install 64 bit Windows Vista on a machine with 4GB ram. If you have enough ram then you need to do a clean install. To do this boot up your machine with the 64 bit Vista CD. Then follow the on screen instructions.
You can install 2-1GB sticks or 1-2GB stick. The comp won't use more than 2GB total.
A motherboard's max RAM refers to how much TOTAL RAM it can handle. If it says the max is 2 GB than you would install two 1GB modules OR a single 2GB module.
Yes, if you want to take advantage of all RAM you have.
Windows 8 has very similar system requirements to it's predecessor, Windows 7. Windows 8 requires a 1ghz processor, 1gb (32 bit) 2gb (64 bit) of RAM, 16gb (32 bit) 20gb (64 bit) of hard disk space, and a Microsoft Direct-X 9 compatible graphics card.
For WindowsXP, 1GB or more. For Windows Vista and Windows 7, 2GB or more, with 4GB+ being optimal.
the minimum capabilities of the operating system alone is 1GB