Some names for the PDA are hand held device, hand held computer, Personal Digital Assistant. Cell phones that have a PDA built in are called Smart phones. Electronic organizer is also another name for a PDA.
personal computer
This depends what processing unit you are talking about. Processing is mainly done by the CPU but you also have a GPU which processes graphics. CPU is the main one but they both work hand in hand to provide you with an optimal computer.
personal computer, hand held computers,work station, Mid range station, main frame, and supercomputer
mechanical computer
Another name for second hand smoke is passive smoke.
Intergalactic Computer Network
The posterior part of the hand. the ubulus
A laptop.
i don't know if this is a hand held tool, but i think a jackknife is one of them.
Notebook computer
Groundwater is another name for subterranean water held in cracks and pore spaces of the earth.