A quantity that is continuously varying, as opposed to varying in discrete steps. Most phenomena in the natural world are analog. When we measure and give them a numeric value, we digitize them. The human brain uses both digital and analog computation.

Articles on that refer to Analog

The Age Intelligent Machines, Chapter Six: Electronic Roots By Ray Kurzweil
The Law of Accelerating Returns By Ray Kurzweil
Chapter 1: The Evolution of Mind in the Twenty-First Century By Ray Kurzweil
Exponential Growth an Illusion?: Response to Ilkka Tuomi By Ray Kurzweil
Chapter 3: Organism and Machine By Michael Denton
Chapter 11: The Nature of Computation By Neil Gershenfeld
Wolfram and Kurzweil Roundtable Discussion By Ray Kurzweil and Stephen Wolfram
A Computational Foundation for the Study of Cognition By David Chalmers
Chapter 9: What Turing Fallacy? By Ray Kurzweil
The Age of Intelligent Machines, Chapter Seven: The Moving Frontier By Ray Kurzweil

News Articles that refer to Analog

Upside of Downsizing Analog Chips
Analog Chips
Tuning In to Nanotube Radio
Image processing chip has potential as artificial retina
The Memory Hacker
Time Capsule's Digital Divide
Automated invention machines
Vernor Vinge and Ray Kurzweil discuss The Singularity
On a Single Chip, Intel Joins Realms of Analog and Digital
Nanotech-based visualization