The launch campaign for the Qosmio G30 laptop will combine online and viral advertising, a website and electronic customer relationship management.
The digital shop won the business after a three-way pitch against two undisclosed agencies. The campaign is expected to go live on 6 July.
Neil Hughston, the managing director of Saatchi & Saatchi Interactive, said: "In what will be a fiercely competitive market, Toshiba has chosen interactive channels to drive awareness and uptake."
The win is the second for Saatchis' digital operation since Hughston was poached as its chief from Tribal DDB in October last year.
Lee Daley, chairman and chief executive of Saatchi & Saatchi, said: "Interactive is key to our strategic redevelopment. Toshiba is a great win. We are fundamentally committed to helping it achieve outstanding results."