Photos: Old PCs help Africa's blind

Other technologies that the KUB is exploring include ways to enable visually impaired people to access any computer they want. Traditionally, only machines with screen-reading software pre-installed were open to blind or visually impaired users. However, the charity recently partnered with Dolphin Computer Access, which has manufactured a USB key — the Dolphin Pen — that contains screen-reading and voice-enabled applications to turn any PC into an accessible machine. "You simply plug in the pen and all your settings are there after a few seconds. It boots from the pen and, when you are finished, you simply unplug it and walk away," says Kieti.