GUI, smart watch, portable music. Plus of course tablets, smart phones, digital portable music and plenty of other things that other companies did first. You yourself admitted they are NOT first to market with products. “Apple makes it work and gains wide market acceptance” means they didn’t make it first.
You’re claiming Apple knocks off other companies, I’m saying they don’t. What strange Rube Goldberg contraption are you calling a tablet prior to the iPad? Smartphone? Where are they now?