Marvell said it has found ways to cut costs in the way it's designing the chips.

The nonprofit organization that has tried to produce a $100 laptop for children in the world’s poorest places is throwing in the towel on that idea—and jumping on the tablet bandwagon.

One Laptop Per Child’s next computer will be based on chipmaker Marvell Technology Group Ltd.’s Moby tablet design. Marvell announced a prototype of the device earlier this year and said it costs about $99.

Nicholas Negroponte, founder of One Laptop Per Child (OLPC), is optimistic his organization will be able to keep the price under $100, in part because Marvell plans to market its tablets widely to schools and health-care institutions.

“We want to see the price drop, and volume is the key to that,” Negroponte said.

The quirky green-and-white XO laptop sold by OLPC to governments and organizations in countries such as Afghanistan and Uruguay wasn’t destined for such a broad audience. OLPC repeatedly had to scale back expectations for how many of the laptops it could produce, and it didn’t get the price much below $200, twice the price specified by the device’s “$100 laptop” nickname.

In 2005, Negroponte envisioned having built 100 million laptops in about two years. Today, 2 million of the machines are in use.

The XO also was more expensive to produce than a tablet would be, because of its many moving parts and features meant to withstand glaring sun, blowing sand, and spotty access to electricity. In some cases, OLPC had to change the XO’s design by region. For example, the physical keyboard had to be customized for students in countries that don’t use a Latin alphabet. It would be less expensive to change the software behind touch-screen keyboards.

Marvell’s co-founder, Weili Dai, said the company also has found ways to cut costs in the way it’s designing the chips.

The new tablets will have at least one, and maybe two, video cameras. They’ll sport Wi-Fi connections to the internet, “multi-touch” screens, and enough power to play high-definition and 3-D video. Marvel hopes to make the screens 8.5 inches by 11 inches, the size of a standard sheet of paper. Unlike Apple Inc.’s iPad tablet, the device also will work with plug-in peripherals, such as mice and printers.

Negroponte said he eventually wants the tablets to run some version of the free Linux PC operating software. But the first generation of the “XO 3.0″ tablet likely will use Android, the mobile-device operating system from Google Inc., or something similar.

Although his group, which is based in Cambridge, Mass., worked with Microsoft Corp. to get its Windows operating system running on the XO laptops, Negroponte said the new tablets will not use Windows 7, because the software requires too much memory and computing power.

Negroponte said he plans to unveil the tablet device at the annual International Consumer Electronics Show in January.

The One Laptop Per Child project has its share of skeptics, who have questioned the possibility of manufacturing a laptop for $100 and the point of computers in countries that lack basic infrastructure.