Not a laptop, not a notebook, not a netbook but even smaller. The HP 200LX. Other models in the lineup include the original HP 95LX release in 1991 and the HP 100LX the immediate predecessor to the HP 100LX. The HP 95LX had a 1/4 CGA screen and thus was somewhat incompatible with the IBM XT. The HP 200LX and HP 100LX had a full (but very small) CGA screen. And thus were basically mini-XTs. It is an MS-DOS based computer with 1 meg RAM and a 80186 processor. It boots MS-DOS 5.0 from ROM. This particular example was built in Singapore during week 30 of 1994. The little HPs were powered by 2 AA batteries with a coin battery to maintain the contents of the RAM. They had quite a few built in applications in ROM with the HP200LX having the most.
Lots of Applications Built-in
Or good old DOS