I'm guessing the 1985 "BookMac" concept eventually became the Macbook of today
There were multiple versions with the top being a glorified PDA (before PDAs were a thing) and the lower left a portable mobile, complete with receiver. The lower right model is probably what we'd call a "laptop" today
These were concepts by the Frog Design company of Hartmut Esslinger who was also responsible for other Apple designs from 1984 - 1990