Hardware Software

Input
Process
Output
Storage

CPU talks to ram as it runs at such a fast speed it cannot talk to the hard drive

Software
Software = sets of instructions which tell the system how to do something. These instructions are collected together in a workable group which is called a program.

Operating system

• User interface software
• Provides a GUI
• Provides a platform for apps to go on it

• Translate Software (TS)
• An OS provides its own TS
• Translate high level language into machine 'Code' - source code to the object code

• Utilities 
• Allows you to change the system to a certain extent 

• Common Applications (Any app that is used around the world
• iPhoto
• Garageband
• iMovie

• Generic Applications
• Pages
• Word

• Custom Software 
• Made for a unique task e.g.making posters

• Off the Shelf Software (bought from a shop)