For RAM memory 1 GB is equivalent to 1024MB, a good brand would be ScanDisk to use in some systems as a sort of backup ram option.
Depends on the computer. I'd have to say that a standard pc has anywhere from 2-4 gigabytes of RAM.
4 GB is a good amount of RAM for a computer. 4 GB of RAM is recommended for top performance of your PC.
usually varies from 2 to 4 to 6 gigabytes.
Click the link I will post to Crucial. They will scan your MacBook and tell you exactly what ram and how much you can install.
The operating system is not directly related to the amount of RAM installed. XP can be run on anything from 32 MB of RAM to 4 GB.
Ram in a computer can be found in multiple capacities. 64mb to up to 8gb for each slot (computers typically come with 2 to 4 slots for Ram). Certain computers have the downfall of having a limitation to how much Ram can be added.
You purchase ram seperately from the motherboard, so you can have 4 GB of ram on any motherboard that supports Intel processors.
It varies. The 11" Macbook Air comes with 64 GB flash storage and 4 GB ram. The Mac Min, & Macbook Pro come with a 500 GB hard drive and 4 GB or ram. The iMac 21.5" & 27" comes with 1TB hard drive and 8 GB ram. They can all be upgraded to more.
1 GB of RAM (Random Access Memory) isn't very much. If your computer can support it, it is best to get 4-6 GB RAM for maximum efficiency.
A DVD-RAM has a capacity of 1.6 GB
Although very expensive, 4 GB DDR2 and DDR3 RAM modules can be purchased from many online retailers.
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.