Hardware/software

Hardware: Physical component of the system (printer, mouse)
Software:  Non-physcial components. (control pannel, system preferences, programs)    3 Types = Utility, application, operating system.

Components: Input (magnetic character reader, keyboard, lightpen), CPU, RAM (random access memory (volatile/always changes)) / ROM (read only memory (non-vaolatile)), Secondary Storage (hardrive), Output (printer).
Pimary Memory is closest to the CPU, which is RAM/ROM. Secondary storeage is the hardrive.

Interface: One thing talking to another, allows communiction. Allowing you to talk to the machine.Types:  GUI (graphical user interface). GUIs are WIMPS (Windows, Icons, Menus, Pointers) Command Line Interface.