Who was the first? The question that tormented me for a long time

Did you have such a thing that you live and think that only one company deals with laptops and computers? Rather, their creation, improvement, and so on. Yes, many of you will think - are you out of your mind? There are at least five such companies, or even more.
And you'd be right. But, so I found out that in addition to Apple and HP, Samsung, Dell, Asus, Acer, and so on are also working on the market for these products. But I always wondered: Who was the first to think about such a technique and began to implement this product and develop new technologies?

I could not even think that the development of computers and everything related to this area was not at all involved in those companies indicated above. The first who began to engage in all developments in this area, as well as IT services and consulting services, software company Big Blue more info one of the world's largest manufacturers and suppliers of hardware and software and IT services and consulting services.