Mack book is brand of note book computer manufacture by apple with inteligence .it is a portable notebook . and only apple is good brands in laptop and phones .its is more costly but its work is more securable .becouse appple secury is very heigh and quality of softwares hand hardwares are good but costly .mackbook is usefull for office use but its not neccery for work but good worlers can be choise apple mackbook even I am using apple mackbook .i can realy enjoy mackbook speed is better than comparision other laptop and ebooks .hoveever its beter everyproduct of apple enncluded.thankyou