1.1 why is the computer used by so many different people, in so many different professions? 1.2 list the five major hardware components of a computer system. 1.3 internally, the cpu consists of what two units? 1.4 describe the steps in the fetch/decode/execute cycle. 1.5 what is a memory address? what is its purpose? 1.6 explain why computers have both main memory and secondary storage. 1.7 what does the term multitasking mean?