Now we’re going waaaay back — to the Epson HX-20, regarded as the first laptop computer. The HX-20 was announced in Nov. 1981, and started
selling in 1983. Thankfully there have been many advances in portable computers since ’83. The Epson HX-20 featured a full-transit keyboard,
rechargeable nickel-cadmium batteries, a 120 × 32-pixel LCD screen that allowed 4 lines of 20 characters, a calculator-size dot-matrix printer, the
EPSON BASIC programming language, two Hitachi 6301 CPUs at 614 kHz, and 16 KB of RAM, expandable to a whopping 32 KB. It ain’t pretty, but you
have to start somewhere.
A History of Portable Computing