With the approval of widow Yoko Ono, former Beatle and peace activist John Lennon, who was killed 28 years ago, appeared digitally in a 30-second television ad in support of the "One Laptop per Child" campaign.
The spot was launched on Thursday and will play in donated broadcast and cable time slots.
The voice of Lennon says: "Imagine every child, no matter where in the world they were, could access a universe of knowledge. They would have a chance to learn, to dream, to achieve anything they want.
"I tried to do it through my music, but now you can do it in a very different way. You can give a child a laptop and, more than imagine, you can change the world."
The One Laptop per Child (OLPC) Foundation, created in 2005, started producing the XO laptop at a production cost of less than $200 for the purpose of distributing those computers to the world's poorest chlildren.
Their mission statement is as follows:
To create educational opportunities for the world's poorest children by providing each child with a rugged, low-cost, low-power, connected laptop with content and software designed for collaborative, joyful, self-empowered learning. When children have access to this type of tool they get engaged in their own education. They learn, share, create, and collaborate. They become connected to each other, to the world and to a brighter future.