 Big plans to get Africa connected to the net |
On this week's Digital Planet Gareth Mitchell finds out more about computer forensics and asks whether it is possible to delete data completely from your machine?
He also takes a look at grand plans to get a third of Africa online via broadband within five years.
Last week Thai Police arrested Canadian teacher Christopher Paul Neil on suspicion of appearing in images of child abuse which had been posted on the internet.
In the images the face of the abuser had been digitally altered. It appeared that a swirl effect had been used to hide the person's identity.
German police reversed the effects of the imaging algorithm to return it to its original state.
Digital Planet spoke to Andy Frowen, director of forensics at Intaforensics, a company which specialises in retrieving data in criminal cases.
He told the program exactly how difficult it is to delete data from a computer and how their work has successfully led to convictions of paedophiles in the UK.
Currently less than 1% of the African population has access to broadband, despite international goals of getting a third of the continent online by 2015.
To address this issue the International Telecommunications Union (ITU) is hosting a major conference in the Rwandan Capital Kigali.
We hear from people living in the city who are having trouble getting online - even our reporter who spoke to them had problems connecting to the internet when he wanted to send us his interviews.
Darren Waters, from BBC News Online spoke to Dr. Hamadoun Toure, the Secretary General of the ITU about the obstacles of getting high speed access available across the continent.
Last week's programme on mobile phones has got our listeners' talking - and e-mailing us - about the new Amharic enabled mobile phones.
Digital Planet has been told that it should be available in Ethiopia in the next two weeks.
Those listeners in Kenya who wanted to know if these handsets would also go on sale there will have to wait. Nokia says that they will initially be rolled out in Ethiopia only.
Looking at the night sky used to involve peering out of your bedroom window or standing in the back garden, but now it is available with just a few clicks of a mouse.
Scientists at Exeter University in the UK are putting up the data they collect onto Google Sky, so that even amateur astronomers can be kept up to date on the latest celestial events.
Digital Planet spoke to Alasdair Allan from the eStar project at Exeter University who is sharing the data their network of telescopes collect.
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