[paradox460]

HP used to have extremely small laptops in the early 90s, specifically the omnibook 300

https://en.wikipedia.org/wiki/HP_OmniBook

[zokier]

The HP LX series (95LX, 100LX, 200LX) is one of my favorites. It also fits the description "smaller than VHS casette"

https://en.wikipedia.org/wiki/HP_95LX

https://en.wikipedia.org/wiki/HP_200LX

[0gs]

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