Windows Vista proved itself to be unsuccessful and unaccepted on the market for several reasons. First, it had a completely new user interface that alienated previous Windows users - learning Vista was like starting all over from the beginning. Secondly, it was known as a "memory hog" that needs a lot of RAM just to run continuously, and this did not even include the additional memory required to actually run applications. And thirdly, it caused the processor to operate harder and hotter, which increased the chance of your processor breaking down.
Microsoft tried to fix this problem by hurriedly developing Windows 7, a continuation or the Vista "remake." It has several new features; the most famous one being the integration of minWin, a new architecture that will prevent Windows from taking a lot of RAM cache when running.
Windows 7 was announced to the public on January 2009, promising "a new Vista" and promoting it to be the next breakthrough after Windows XP (Project Blackcomb). The official minimum requirements for Windows 7 were released as:
Processor: 1.0 GHz CPU
RAM: minimal of 1GB (32-bit) or 2GB (64-bit)
Hard Disk: 16GB of disk space (32-bit) or 20GB (64-bit)
VGA: At least 128MB of memory, with support for DirectX 9.0.
While these are the minimal requirements for Windows 7, there are still ways to install it in less RAM. For this purpose,the ultimate aim will be to see how well Windows 7 performs in reduced RAM, and we'll try taking it all the way down to 256 MB.