Wednesday, June 29, 2011

A Method To Have A Faster Computer

A faster computer can increase sony vaio vgn-sr190n keyboard, sony vaio vgn-sr290n keyboard the profit of a business. It can double or triple the work of an employee. The benefits of having a faster computer are so numerous, from student who wants to finish his/her assignments quickly to a business owner who monitors his/her business by using computer. To have a faster computer there are a lot of ways, from the computer set up itself from the memory used, the processor and etc. But with this article I will focus more on using cache to have a faster computer.

Cache memory is very fast memory that is built into a computer's central processing unit or located next to it on a separate chip. The CPU uses cache memory to store instructions that are repeatedly required to run programs, improving overall system speed. The advantage of cache memory is that the CPU does not have to use the motherboard's system bus for data transfer. Whenever data must be passed through the system bus, the data transfer speed slows to the motherboard's capability. The compaq presario cq60 keyboard, compaq presario cq61 keyboard CPU can process data much faster by avoiding the bottleneck created by the system bus.

The rate of the chips used in the cache and the algorithm the cache uses to determine which data to store in the cache are the two main factors in determining the effectiveness of the memory cache. If the algorithm is really good at guessing what data will be requested next, then the cache will come up with a hit more often. As more data is requested by your software, the cache replaces the data in the high-speed chips the longest with the new data.

The basic process of the cache for instance the computer asks for data stored on disk. The cache manager retrieves the data and sends it to main memory. The cache manager reads additional data from the disk and transfers it to cache. When more data is requested by the computer, the manager checks the cache first to see if it is there. If so, then it is sent to the main memory, speeding up the processing speed. If the data is not in cache, then the cache manager must locate the data on disk, slowing down the processing time.

Cache that is built into the CPU is faster than separate cache, running at the speed of the microprocessor itself. However, separate cache is still roughly twice as fast as Random Access Memory. Cache is more expensive dell latitude e5400 keyboard, dell latitude e5500 keyboard than RAM, but it is well worth getting a CPU and motherboard with built-in cache in order to maximize system performance.

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