Dell and Microsoft will be donating part of the proceeds from the sale of three new computers to an AIDS fighting charity. Dell has created two laptops and a desktop PC running on Windows Vista specifically for the (RED) charity, which was founded by U2 singer Bono and Bobby Shriver, in a bid to raise money to finance health programs in Africa.

For every laptop sold the computer giants will be donating $50 (£25) to the charity and for every desktop PC sold, the charity will receive $80 (£40). Microsoft says it expects "several hundred thousand" of (Red) Dell PCs, which have been partly designed by Bono and feature red casing and a red Windows background, to be sold in 2008.

"My job is to put some poetry in the machine, put some funk in the machines," explains Bono.

(Red) was founded in 2006 and has worked with companies including Motorola, Apple and Gap to create branded products, with the proceeds going to the charity. The PCs will sell for the same price as regular Dell models and will be available worldwide from 31 January.