• Android = a robot with a human appearance
• All androids are Robots – but, not all robots are androids
• Android first used in 1837, referencing automated chess players
• Greek prefix andro-, meaning male
• Greek suffix -eides meaning form or shape
• Android = operating system for tablets and smartphones

Droid – abbreviation of the word android
Droid is a robot that does not necessarily look like a human being
Droid was coined in Star Wars (1977)