Microsoft Surface: Behind-the-Scenes First Look (with Video)

• Microsoft
• Surface
• surface computing
• computers
• Jeff Han
• iPhone
• video

(1) Screen: A diffuser turns the Surface's acrylic tabletop into a large horizontal "multitouch" screen, capable of processing multiple inputs from multiple users. The Surface can also recognize objects by their shapes or by reading coded "domino" tags.	(2) Infrared: Surface's "machine vision" operates in the near-infrared spectrum, using an 850-nanometer-wavelength LED light source aimed at the screen. When objects touch the tabletop, the light reflects back and is picked up by multiple infrared cameras with a net resolution of 1280 x 960.
(3) CPU: Surface uses many of the same components found in everyday desktop computers — a Core 2 Duo processor, 2GB of RAM and a 256MB graphics card. Wireless communication with devices on the surface is handled using WiFi and Bluetooth antennas (future versions may incorporate RFID or Near Field Communications). The underlying operating system is a modified version of Microsoft Vista.	(4) Projector: Microsoft's Surface uses the same DLP light engine found in many rear-projection HDTVs. The footprint of the visible light screen, at 1024 x 768 pixels, is actually smaller than the invisible overlapping infrared projection to allow for better recognition at the edges of the screen.

The Anti-PC

The name Surface comes from "surface computing," and Microsoft envisions the coffee-table machine as the first of many such devices. Surface computing uses a blend of wireless protocols, special machine-readable tags and shape recognition to seamlessly merge the real and the virtual world — an idea the Milan team refers to as "blended reality." The table can be built with a variety of wireless transceivers, including Bluetooth, Wi-Fi and (eventually) radio frequency identification (RFID) and is designed to sync instantly with any device that touches its surface.

One of the key components of surface computing is a "multitouch" screen. It is an idea that has been floating around the research community since the 1980s and is swiftly becoming a hip new product interface — Apple's new iPhone has multitouch scrolling and picture manipulation. Multitouch devices accept input from multiple fingers and multiple users simultaneously, allowing for complex gestures, including grabbing, stretching, swiveling and sliding virtual objects across the table. And the Surface has the added advantage of a horizontal screen, so several people can gather around and use it together. Its interface is the exact opposite of the personal computer: cooperative, hands-on, and designed for public spaces.

If it seems as though the Surface machine sprang up out of nowhere, that's only because Microsoft has been unusually secretive about it. Early designs of the table were displayed around the room as evidence of the product's long development cycle; rejected shapes included "squashed white egg" and "podium." Steven Bathiche, research manager for the project, has been involved since the beginning (in 2001) when he and fellow researcher Andy Wilson first dreamed up the idea of a tabletop computer. Bathiche spoke about the Milan project's evolution with the evident excitement of a man who's had to keep the most important thing he's ever done a secret for six years. "We've gone through several generations of this machine," he said. "The first was a proof-of-concept called T1, and we just hacked it into an IKEA table."

And there it was, partially disassembled, behind me. It looked as if they had attacked the prefab particleboard furniture from the Swedish superstore with a Sawzall, then stuffed in off-the-shelf computer parts, cameras, projectors and mirrors until it all worked. The idea went straight to the top: Once Bill Gates okayed it, surface computing moved from a heady research project to the nuts-and-bolts planning of product development.

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