Not only was the IBM PalmTop PC 110 the world's tiniest DOS and Windows subnotebook in 1995 but it also functioned as a telephone handset! Let's take a look at this fantastic little 33MHz 486 computer from the mid '90s, which also strove to be a personal organizer, a digital notepad, a desktop clock, a portable fax machine, and a digital camera all in one handheld device.