The and does the comparisons needed for processing, as well as controls the other parts of the computer system. It is referred to as the brain of the Central Processing Unit component, inside the system unit. It performs the calculations computer. The component of the system unit attached together with a heat sink on the mother board is used to prevent overheating of the processor (CPU) on the motherboard 20 Cache memory, also called CPU memory, is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. This memory is typically integrated directly with the CPU chip or placed on a separate chip that has a separate bus interconnect with the CPU. It is a special group of very fast memory circuitry, usually built into the CPU, that is used to speed up processing The place where data and instructions enter or leave the core is called 21 This unit provides various functions, including generation of the memory and I/O addresses for the transfer of data between outside the CPU and the Execution Unit The of the computer processor. It holds the results of processing. It may hold an instruction, a storage address, or any kind of data (such as a bit sequence or individual characters) The and makes sure they are in the proper order for processing. This is a technique used in the CPU to speed up the execution of a program by reducing wait states The operations. It represents the fundamental building block of the central processing unit (CPU) of a computer The directs operation of the processor. It tells the computer's memory arithmetic/logic unit and input and output devices how to respond to a program's instructions The timing mechanism within a computer that synchronizes its operations. Also called clock rate, the speed at which a 23 is one of a small set of data holding places that are part 24 unit requests instructions and data from cache or RAM 25 unit is a digital circuit used to perform arithmetic and logic 26 component of a computer's central processing unit (CPU) that microprocessor execut