AT&T

We almost had a smartphone in the 90s. Why did it fail? adds AT&T as one of the major partners around General Magic. The source uses AT&T mainly as evidence that the company had heavyweight corporate backing, while still failing to turn broad resources into a focused, demanded Sony Magic Link product.

AT&T appears in 真正改变世界的技术，为什么一开始都不被看好？| S10E16 as the business context behind Bell Labs’ early preference for BJT devices over MOS transistors. The source says AT&T’s communication-switching needs made speed and stability especially important.

The episode uses AT&T to explain why incumbents can reject a future-defining technology for reasons that make sense locally. MOS did not initially fit the telecom performance target, but it later fit the scaling logic of integrated circuits.

Connections

• Bell Labs - research organization tied to the AT&T context in the source.
• Bipolar Junction Transistor and MOSFET / MOS Transistor - incumbent and challenger transistor technologies.
• Disruptive Innovation - frame for how a local rejection can still miss a scalable future.
• General Magic, Sony Magic Link, and Constraint-Driven Product Discipline - early mobile-product partner context added by Planet Money.