A hand held counting device is called a calculator. You can purchase a calculator anywhere that school and office supplies are sold.
With an Electrical Measuring Device such as a handheld Meter designed to read Hertz. Fluke is world renown for their handheld Meters
Styles
A pda
ROM
The Newton MessagePad
No, a server is not a handheld internet device. This is something that is used to logon to a specific website. Each site has their own server that "presents" their website.
Yes, the Kindle
One can purchase a blackberry handheld wireless device on blackberry's official webpage, or at one of their official shops which can be found pretty much anywhere.
handheld scanner
iphones and ipod are one of them.
a handheld device that allows you to control gameplay wired or wirelessly
Pacemakers are programmed externally with a handheld electromagnetic device.