D. Match these words from the text (1-9) with the correct meanings (a-i).
__________1) software a) the brain of the computer
__________2) peripherals b) physical parts that make up a computer system
__________3) main memory c) programs which can be used on a particular computer system
__________4) hard disk d) the information which is presented to the computer
__________5) hardware e) results produced by a computer
__________6) input f) input devices attached to the CPU
__________7) ports g) section that holds programs and data while they are executed
__________8) output h) magnetic device used to store information
__________9) CPU i) sockets into which an external device may be connected