[so-pu]

No, synthesizers and keyboards are not the same. While many synthesizers have a keyboard-style interface, keyboards are simply controllers for generating sounds electronically, and synthesizers generate sounds using mathematical calculations and modulation of electronic signals. You can use a keyboard to control a synthesizer, but you can also use other interfaces, like a mouse and keyboard on a computer or a wind controller. Additionally, keyboards don’t necessarily make sounds on their own, whereas synthesizers do. Synthesizers can be much more than just a keyboard since they can generate a wide range of sounds and timbres from various sources, and they have the ability to modulate those sounds in various ways.