Monday 23 February 2015

77. Parts of a Computer - 2. RAM


What is RAM? Random Access Memory (RAM) is the "working memory" in a computer. RAM is volatile in that all information stored there is lost when a PC is switched off so be sure to back up your working files as you go or you may find hours of work can disappear after an electricity spike.

Additional RAM allows a computer to work with more information at the same time which can have a dramatic effect on total system performance.

The amount of RAM which can be used by your PC depends upon its configuration and Operating System. Earlier Operating Systems would only support a maximum of 2GB even though the motherboard was big enough to accept 4GB. Even Windows 8.1 will only accept 4GB in certain cases so don’t waste your money buying RAM modules if your system will not be able to use it.

RAM limits in Windows 8.1 Enterprise – 4GB on x86, 512GB on x64

RAM limits in Windows 8.1 Professional – 4GB on x86, 512GB on x64

RAM limits in Windows 8.1 – 4GB on x86, 128GB on x64

(x86 refers to 32 bit systems and x64 refers to 64 bit systems).


RAM is Also Known As:-
main memory, internal memory.


Important RAM Facts
RAM is typically referred to simply as "memory" even though other types of memory may exist inside a computer. Each motherboard supports only a certain range of memory types in certain combinations so always check with your motherboard manufacturer before making a purchase.

RAM should not be confused with storage. Most modern PCs or laptops are supplied with 4GB of RAM but will have, typically, 500GB of storage on the hard disc drive.


Popular RAM Manufacturers
Kingston, PNY, Crucial Technology, Corsair

RAM Description
A standard "module" or "stick" of desktop memory is a long, thin piece of hardware and resembles a short ruler. The bottom of the memory module has one or more notches to guide for proper installation and is lined with numerous, usually gold-plated connectors.

Memory is installed in memory module slots located on the motherboard. These slots are easily locatable by looking for the small hinges on either side that lock the memory in place. Certain sizes of modules may need to be installed in certain slots so always check with your motherboard manufacturer before purchase or installation.

Memory modules come with various storage capabilities. Modern memory modules can be purchased in 256MB, 512MB, 1GB, 2GB, 4GB, and 8GB sizes.

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