NVRAM
Non-volatile random access memory (NVRAM) is the general name used to describe any type of random access memory which does not lose its information when power is turned off. This is in contrast to the most common forms of random access memory today, DRAM and SRAM, which both require continual power in order to maintain their data. NVRAM is a subgroup of the more general class of non-volatile memory types, the difference being that NVRAM devices offer random access, like hard disks. The best-known form of NVRAM memory today is flash memory. Some drawbacks to Flash memory include the requirement to write it in larger blocks than many computers can atomically address, and performance limitations preventing Flash from matching the response times and, in some cases, the random addressability offered by traditional forms of RAM. Several newer technologies are attempting to replace Flash in certain roles, and some even claim to be a truly universal memory, offering the performance of the best SRAM devices with the non-volatility of Flash. To date these alternatives have not yet become mainstream.
Ram stands for Random Access Memory which means that the operation of ram is used to store data and holds it before the CPU (Central processor unit) can access it. The Ram and CPU communicate and the CPU tells the ram what data it needed to process. Ram is only temporary storage because the information here is not saved until you tell the system to because permanent storage is handled by the hard drive. The ram works with the hard drive to store data that the CPU will need in the near future to produce a task quicker. The more ram you have the more things you can hold in temporary storage and the faster your computer will run, up to a point. There is a limitation in ram speed and how much ram can be used on the OS (Operating System).
Different operating systems require different amounts of RAM to run successfully.Copyright 2009 Get You on the Net,BenPearce Inc.
