The first laptop was known as the HC-20 when introduced in Japan, and as the HX-20 when introduced worldwide.
This suitcase sized computer was invented by Yukio Yokozawa who patented the HX-20 in 1980.
In 1982 the first HC-20/HX-20’s were sold.
The HC-20 or HX-20 was mostly a keyboard on top of the computer with battery.
It was equipped with 2 whole 614 kHz CPU’s and the brain power of 16 kB RAM that could be expanded to 32 kB if you really wanted a flasy computer.
The data was stored on micro cassettes, but it was also possible to connect an external floppy drive.
The output was done on a tiny minimal LCD screen or with the tiny minimal inbuilt printer.
Some of these sturdy old tech lap-crushers are even functional today still.
But decades later carrying around a 1,6 kilogram suitcase does not have the same appeal anymore as it had in the early 80ies when computers were still new and exciting.
Sources:
- https://patents.google.com/patent/FR2487094A1/en
- https://en.wikipedia.org/wiki/Epson_HX-20
- http://www.museumoftechnology.org.uk/objects/_expand.php?key=1159