To make the computer fast, and to have your application and data a place to stay temporarily while you access them for a faster way.
Depending on which version of Windows, or Mac you use it can be between 1 and 2 GB of RAM needed For Windows 7 it is usually 1 GB of RAM, and if you use Mac then you will need 2 GB
The ram already in it is a micron 4gb 2rx8 PC3L-12800s-11-11-FP MT16KTF51264HZ-1G6M1
Many programs use as much RAM as they can get a hold of and if they have been well programmed they relinquish hold on the memory addresses they do not absolutely need when some other program does need it.
The RAM is use in laptops are SD-RAM
You can use either a 32bit or 64bit operating system (OS) for 4GB of RAM. 4GB of memory is the limit a 32bit OS can handle, this includes any memory that your graphics card has, so your computer may recognise only 3.5GB of RAM if you have a 512MB GPU. You will need a 64bit os that will use all of the ram.
Large RAM chips can be read faster than most ROMs since 2007. Sometimes, to allow uniform access, ROM contents need to be coppied to RAM or shadowed before its first use, and be read from RAM.
It will "use" as much as you can give it. For a desktop installation, you will need at least 128 MB of RAM. P.S. Ubuntu 5.10 is long obsolete. There is absolutely no reason to use it other than historical curiosity.
no...you can't
No you can't. You need at least 1gb ram.
To run windows 7 you need at least 4gb of ram
you dont need to clean ram
You 'use' RAM, not lose it.