If a 1GHz computer can start four instructions per cycle, how many instructions are executed per second? Per minute? If a 1GHz computer can start one instruction per cycle and can start a new instruction on 80% of its cycles, how many instructions can it complete in a second? In a minute? Thanks..

hz is cycles per second i think or maybe minute but what you really need to find out is how many cycles it takes each instruction to complete you only talk about them starting so far