Buffer It is an area of computer’s memory or devices memory for holding data during data transfer. Normally I/O devices have low speed than processor. This speed adjusted by having temporary data storage in a memory typically called buffer. While the device is in operation data transfer can take place in buffer. The process of holding data temporarily during I/O operation is called buffering. Because of buffering , I/O channels place data in buffer and the processor or I/O devices can access data from the buffer. Cache Memory The cache memory is placed in between CPU and main memory. It is a semiconductor memory. It consists of static RAMs. It is a special and very high speed memory that is used to increase the speed of processing by making current program and the data available to the CPU at a rapid rate. Cash memory holds the frequently used instruction and data so that it can provide CPU at a faster rate. It is fabricated along wi...
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