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Cache memory;
Is the fastest type of RAM.
There are three types of cache memory namely;
i)level 1(primary cache)is located inside the microprocessor.
ii)level 2(external cache )may be inside the microprocessor or mounted on the motherboard.
iii)level 3 –is the latest type of cache that works with L2 cache to optimize system performance.
BUFFERS;
Are special memories that are found input/output devices.
Input data is held in input buffer while ouput data is held in output buffer.
A computer printer have buffer where they can store massive documents sent by cpu for printing which frees the cpu to perform other urgents
REGISTERS;
As opposed to buffer,register holds one piece of data at a time and are inside the cpu. Examples of registers are;
i)ACCUMULATORS;this temporary holds the results of the last processing step of the ALU.
ii)INSTRUCTION REGISTER;this temporary holds on instructions just before its interpreted into a form that cpu can understand.
iii)ADDRESS REGISTERS;this temporary holds the next piece of data waiting to be processed .
iv)STORAGE REGISTERS;temporary holds a piece of data that is on its way to and from the cpu and the main memory.
gideon1 answered the question on September 25, 2017 at 09:34
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