Front view of a <a href="https://en.wikipedia.org/wiki/NEC_UltraLite" class="extiw" title="en:NEC UltraLite">NEC UltraLite</a>, the world's first clamshell notebook computer, from 1988, opened up
DigitalIceAge
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>