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CPU, also known as the microprocessor is the heart and/or brain of a computer. Main job of CPU is to execute the instructions that are provided to it. CPU has registers to store the data of output. ALU consists of logic circuitry or logic gates which performs these operations. RAM(Random Access Memory) is a collection of register to read/write data a RAM takes input of 8bit address, data input for the actual data to be stored and finally read and write enabler which works as it is for the latches.