1 _______________ is responsible for executing arithmetric and logic operations such as addition, multiplication, logic shifting

2_______________is an electronic chip consisting of at least 2 processor. this kind of devices is responsible for parallel computing and computer performance amelioration

3_____________ is a memory implemented inside the CPU chip. It has three lvls: lvl1 and 2 are implemented within each core and lvl 3 is implemented outside of cores. its role is important in accelerating program exceution

4_____________is a register responsible for storing the address of the next instruction to be fetched. in case of branching its content is transferred into a stack and replaced by the address of the new location

5__________________- defines the successive steps to accomplish the execution of one instruction. it is composed of fetching decoding execution and storing phases