How do I tell if my mac is GUI or CLI
I am wondering how tell if my mac is GUI graphical user interface or CLI command line interface? and if i should uprade my hard drive from 512mb to the 2TB i saw advertise on here
I believe your answer is yes. You can upgrade your RAM. It looks like you currently have one 512 MEG module. You can upgrade by adding a 1 GIG module for a total of 1.5 GIGS or replace the existing 512 also and insert 2 - 1GIG modules. Would you look on the bottom of your iMacs stand and give us the exact description so we can direct you to the correct RAM and installation guide.
Your mac uses a GUI, although you can access a CLI through the GUI with Terminal.app or by booting into single-user mode.
Short answer: GUI.