this week's "book of the week" has been "a computer called leo" which tells the story of the world's first business computer and the company, more famous for their tea shops and ice cream, who produced it. it's a little short on technical detail, but well worth a listen. this weeks programmes will be available online until at least 0900GMT on monday. http://www.bbc.co.uk/radio4/arts/book_of_the_week.shtml?focuswin -- James F. Carter http://www.jfc.org.uk/