Software-utility software is used to change the system(control panel in system prefrences)
               A set of commands
              opperating sytem
              aplication
Hardware-the physical componets in a system

Input device eg keyboard, mouse

Cpu(central procssing unit)

Rom- read only memory, doesnt change.. rom stays permennant and Non volatile

Ram- random access memory, contiously changes, holds whats going on now

Hardive- secoundary storage( holds for days)

Output- eg printers ( four catergories)

Interface- GUI ( graphical use interface)

WIMPS- Windows, icons, menus, pointers