It needs flexible logic circuitry (to do the actual computing), flexible memory or storage, a flexible power source, and a flexible display.

ECONOMIST: Just press print

Making flexible circuitry is difficult because logic circuits are traditionally made of transistors etched into a crystalline silicon wafer, which is rigid.

ECONOMIST: Just press print

Plastic Logic, also located in Cambridge, England, is developing display drivers using plastic circuitry.

ECONOMIST: SEMICONDUCTORS: Move over, silicon | The