How did Microsoft suceed when these guys failed ? Longer term outlook / full understanding of what computers could do in the future ?
Sinclair failed because of the reasons you saw in the film, Clive didn't think the computer thing had a real future until it was too late.
Microsoft succeeded because they didn't get into the proprietary hardware and software game.
They got paid by IBM to create a DOS, but IBM weren't smart enough to make sure they had exclusivity so MS were also able to market what was effectively the same software to the IBM PC clone manufacturers.
The presence of clones drove the price of the PC down to attainable levels
Once they had DOS in almost all PC desktops, it was a relatively small step to create the killer app that was Windows.
Sinclair failed because of the reasons you saw in the film, Clive didn't think the computer thing had a real future until it was too late.
Microsoft succeeded because they didn't get into the proprietary hardware and software game.
They got paid by IBM to create a DOS, but IBM weren't smart enough to make sure they had exclusivity so MS were also able to market what was effectively the same software to the IBM PC clone manufacturers.
The presence of clones drove the price of the PC down to attainable levels
Once they had DOS in almost all PC desktops, it was a relatively small step to create the killer app that was Windows.