1) Menu Bar — contains all of Photoshop’s available options
2) Toolbox — has various tools for editing the image
3) Options Bar — set the options for the currently selected tool
4) Palettes — various panes to control different aspects of the project. Includes layers, channels, paths, history, etc.
5) Image Area — the currently open image(s)
Each component is labeled below:
Credit to Dr. Mary Nicholson