Ram+Explanation+of

Ram Explanation of RAM stands for Random Access Memory. This in everyday parlance is computer memory that holds running software, including parts of your operating system, parts of word processing files as you work on them, etc. etc.

It is a truism that the more RAM you have the more information your computer can quickly access. The reason is because your computer loads applications, music, graphics, and other files from external storage (CD-ROMs, hard drives, USB flash drives, DVD-ROMs, etc.) into RAM, because Ram is accessed much faster than these other storage mechanism.

RAM is limited, when you work on a lot of applications, and files than can normally be fit into RAM, consequently most operating systems perform a mechanism called “Thrashing”. In Thrashing it uses your hard drive as "Virtual" memory. Although virtual memory slows down your computer's processing since hard drives are slower to read, and write to than RAM, it does allows your computer to perform more tasks than if it relied solely on RAM alone. The negative side of Ram is that when you power down your computer all the information contained in Ram is lost. This is one of the reasons why it takes so long to boot up modern computers, all of the operating system information has to be reloaded into memory. Whilst on the subject it is necessary to make reference to Rom. ROM stands for Read Only Memory. Your computer’s Rom holds crucial instructions needed for your computer to boot up and operate, this can sometimes be referred to as the “Operating System for the Operating System” Hope you can get your head round that.

Rom is hard-wired into a computer, and cannot be changed, hence the read-only moniker. So fortunately, when you turn your computer on and off, the instructions inside ROM do not get erased.  