HP used to have extremely small laptops in the early 90s, specifically the omnibook 300
https://en.wikipedia.org/wiki/HP_OmniBook
don't forget the Jornadas. i guess those were PocketPC-powered but i def bought one circa 2005 for like $90 and i would do it again right now
don't forget the Jornadas. i guess those were PocketPC-powered but i def bought one circa 2005 for like $90 and i would do it again right now