He would will his best friend, Steve Wozniak, to complete a circuit board design for Atari in days, instead of weeks.

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In September, the tour will relocate to the ultra-hip Soho neighbourhood, where a circuit of fashion and design boutiques will host tastings, giving shopping-and-wine enthusiasts a chance to quaff lush varietals while browsing funky designer wares.

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Jobs and Wozniak had built a kit for a pre-assembled computer circuit board, and roped in Wayne, a draftsman, to design a logo and write a manual.

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Its the difference between soldering transistor after transistor into a tangle of wires and printing the whole design, in hundreds of copies at a time, on integrated circuit chips.

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If you wanted to do only one task and do it the same way every time, you would do better with a custom chip design -- what the engineers call an application specific integrated circuit.

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