Should I get 32-bit, 64-bit or higher system?
Computer technology changes almost daily. To keep up with the technology is a full time job. To advice someone on what type of computer to get, is an impossible task. Everyone's needs are different. Everyone's preferences is different. Therefore, these pages are for your information to make an educated decision. There is so much information that it may confuse you more than help you. However it is important to review all the information. Also as technology changes, some of the information provided here may not apply.
For more information that I don't have included here, see the following
Hardware questions Information on computer parts.
Buying a new computer, you should get a 64-bit system. They are faster and the 32-bit is being phased out. Most if not all software is now compatible with 64-bit. However if you are upgrading your computer. If you have a 32-bit computer, make sure you are using the 32-bit version of the operating system. (just an FYI, they are in the process of designing 128 bit systems so it is evolving)