When Kraftwerk Issued Their Own Pocket Calculator Synthesizer — to Play Their Song "Pocket Calculator" (1981) | Open Culture
Flashbak - Peak calculator probably came in 1981, with Kraftwerk's Pocket Calculator released as a cassingle in a calculator-shaped box.' - via PulpLibrarian | Facebook
Stream Pocket Calculator (Kraftwerk Cover 1999) by Analog 80 | Listen online for free on SoundCloud