Lean Software, Power Electronics, and the Return of Optical Storage

In this March roundup, IEEE Spectrum's editor-in-chief Harry Goldstein and senior editor Stephen Cass talk about some of the highlights of Spectrum's recent coverage, including a plea for programmers to stop producing bloated programs, a new transistor that could help make how we handle electrical power smarter, and the potential return of optical discs as a high-density date storage medium.