While I am no Apple fanboi, I can see the impact that Steve Job (RIP) has had on the world. He (through Apple) made technology more accessible to people and easier to use for techno-phobes.
A few highlights of Apple's work: Using a mouse with a Graphical User Interface - now the default way to interact with a computer. Stable computers that result from the fact that hardware and software come from the same source. Gadgets that combine attractive design and ease of use that appeals to the non-techie types (iPod/iPhone/iPad).
Computers come and go, but these are things that made a difference.