You can play a wide selection of older games, though to play newer ones, you'll probably want a new computer, or get a console.
As long as you go price-hunting, you can get a very decent computer for around $1000 (US/Aus), even if it's pre-assembled.
no
crysis 2
probably not... u will need a better graphic card....
Video-cards are actual computer components. They can't be downloaded. They have to be bought, and 64mb cards won't be easy to find. Besides, if you are looking for a gaming card, You will want a bigger one for the newest games. Just go to Best Buy or Circuit City and ask about Computer Gaming.
Nothing
The Acer Aspire One has Intel GMA 950 graphics. It will run World of Warcraft. However, it will only do so at reduced resolution. It is possible, but game performance may suffer.
Some graphics cards have memory on board the card itself. Others rely on the memory chips on the system board for memory , thus sharing memory. Suppose a PC has a specification of 256MB of memory and 64MB shared graphics. The memory available for your operating system and applications will be 192MB. If a PC had the same specifications but the 64MB were dedicated, the 64MB required to run the card would use this memory, leaving the full 256MB for your operating system and applications. In short, shared = compromise, dedicated = better.
you can't or you can get more ram but it only increases shared memory video!
you should be-able to.
Google Earth requires a 3D capable graphics card with DirectX9 or OpenGL with 64MB of VRAM. Google Earth simply won't work without a graphics card.
Most likely the other remaining MB is dedicated for games.
Your laptop comes with the Nvidia GeForce Go FX5350 64MB. It may be possible to upgrade to a newer model as long as your motherboard is compatible.