Palmtop PC

A Palmtop PC is an obsolete, approximately pocket calculator-sized, battery-powered computer in a horizontal clamshell design with integrated keyboard and display.

Most Palmtop PCs were small enough to be stored in a user's shirt or jacket pockets.

While many Palmtop PCs came with a number of PDA and office applications pre-installed in ROM, most of them could also run generic, off-the-shelf PC software with no or little modifications.

Most Palmtop PCs have been based on a static hardware design for low power consumption, and instant-on/off without the need to reboot.

Depending on the model, the battery could power the device for a period ranging from several hours up to several days while running, or between a week and a year in standby mode.