Steve Jobs, Bert Jansch, Ralph Steinman and Robert Whitaker
Radio 4's obituary programme with Matthew Bannister asks
What made Steve Jobs tick? We review a life that changed our world with his friend and advisor of forty years.
Also Bert Jansch - the guitarists' guitarist whose style ranged from jazz and blues to traditional folk. His collaborator Beth Orton pays tribute.
Professor Ralph Steinman, who won the Nobel Prize for Medicine for his work on the immune system..
And Robert Whitaker, official photographer to the Beatles who was wounded in Vietnam.