The world’s top cellphone maker Nokia will start to make laptops, entering a fiercely competitive but fast-growing market with a netbook running Microsoft’s Windows operating system

in its first laptop. Analyst Neil Mawston from Strategy Analytics said the technology choices were a good win for the U.S. companies. “We believe ARM and Symbian are among the main losers from the Nokia Booklet announcement,” he said. Shares in ARM were 0.2 percent lower at 1400 GMT, underperforming slightly firmer DJ Stoxx European technology shares index. Shares in Nokia were 1.6 percent stronger at 8.91 euros, while Microsoft was 0.6 percent firmer. Nokia said it would unveil detailed specifications, market availability and pricing of its new device on Sept 2.

A source close to Nokia said the new netbook would use the upcoming Windows 7 operating system. Microsoft says a stripped-down version of Windows 7 will be introduced to netbooks the same time as its general release on Oct. 22. Local media reports in Taiwan have said that Compal, the world’s No. 2 contract laptop PC maker, has pitched netbook models to Nokia, but there has been no official confirmation from either side. Nokia declined to comment on the manufacturer it uses. Most of the world’s top electronics brands typically do their own design work, but outsource the manufacturing process to contract manufacturers such as Compal and its larger rival Quanta.