raschemmel:
Is the Commodore 64 a uC or is it a computer with an OS ? (I don't know so I' asking)
Does it have more memory than an arduino ? Can it run Excel (I haven't seen anyone do that with an arduino.
The commodore 64 is an home computer based around 6502 uProc (1 Mhz, 64KB RAM). It had dedicated (powerful) chips for sound and video and IO. Although popular in games there was a complete office suite (word-processing spreadsheet etc) Excel did not exist yet in those days but it had a ported version of visicalc (The mother of spreadsheets). Also other professional applications were written for the C64. It had also an expansion port with TTL level pins so you could extend it with your own electronics. Yes I have one in the loft collecting dust...