If you watch the world of technology - the battle for the Operating system has been a long and interesting one.
Back in the early 1980s there were some significant players who really knew about how to talk to machines.
IBM had about 7 or more ranging from big mainframes (VM, MVW and TPF) to mid range (Sys36 and Sys 38)and then the PC - OS/2 and Dos. Plus some weird ones. Now there are really only a few - zTPF, VM iSeries and of course they are big Linux fans now.

In the mobile world Symbian used to be the Amadeus of the mobile market. Now we see them losing customers and now their only major customer is Nokia - itself a company not in great shape. So the image above looks a lot different now that Sony Ericsson has pulled out.
So who are the new kids on the Block?
As we move to smart phone we have several.
Mr Closed is RIM and his enemy Mr Apple iOS
Mr Open is Android and WebOS (now HP)
So its the big 4 vs all the others. Sound familiar?
Cheers
Thanks for reading - private comments please to professorsabena@gmail.com
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