For a 32-bit Operating system: 4 GBFor a 64-bit Operating system: 128 GB
It depends on the version. 32-bit Windows supports up to 4GB of RAM, whereas 64-bit versions support 4GB + of RAM. It is the same with Windows Vista and 7.
The official minimum for a 64-bit installation is 2 GB of RAM. There is no "recommended" amount, as it depends on what you are trying to do. The maximum supported depends on what edition you are using: Windows 7 Professional and Ultimate support 192 GB of RAM. Windows 7 Home Premium supports 16 GB of RAM. Windows 7 Home Basic supports 8 GB of RAM.
32-bit versions of Windows 2000 support up to 4 GB of RAM minus space used by devices in the address space on non-PAE capable systems. On PAE-capable systems, Windows 2000 can support, depending on the version, up to 64 GB of RAM.
A 32 bit Windows XP can only address 3GB of RAM. To take advantage of all 4 GB and beyond, use 64bit version.
Yes, depending on the motherboard. Most Pentium 4 chipsets support up to 4 GB of RAM, although the motherboard may not physically support enough RAM modules.
Theoretically it should but you might see some lagging in performance. Especially if you have 1 Gb of RAM. Windows 7 needs at least 4 Gb of RAM of you want to feel comfortable working with it.
Windows xp supports a maximum of 4 gigabytes of ram and 2 Terabytes of hard drive space
If starter: 2 GB. Any other edition of 32-bit support maximum 4 GB.
Windows XP:FOR WINDOWS XP* 2.0 GHz P4 processor or equivalent* 512 MB RAM* A 128 MB Video Card, with support for Pixel Shader 2.0* At least 4 GB of hard drive space, with at least 1 GB additional space for creations.FOR WINDOWS VISTA* 2.0 GHz P4 processor or equivalent* 768 MB RAM* A 128 MB Video Card, with support for Pixel Shader 2.0* At least 4 GB of hard drive space, with at least 1 GB additional space for creations.
The minimum requirement for RAM to run windows 7 is 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit).
An Intel atom processor will support at around 2 gb of ram
You can run Windows 7 with 1-2 GB of RAM depending on what you are doing. (More stuff you need more RAM) I Would go with at least 4 if not 8 GB of RAM to run Windows 7.