A PDA or any computer small enough to be held in one hand (most smart phones now classify as hand held computers).
Probably going to be the original Nintendo. I would say that is the PlayStation 2. It has the longest life of any console as they are still making games for it today. It has the most game titles available of any console. And it has sold the most games of any console to date.
A hand-held microphone is a microphone that you hold in your hand, such as you've seen being used in concerts, and most other public occasions.
it depends on the date.
M2 can be hand held, but, that is the exception. MP5 in 10mm is along the lines of what you might be asking about.
Question can't be answered as written. One hand or two hands?
26 26 hazlenuts
The original Nintendo Game Boy was released to the North American market in July, 1989. Immensely popular, the hand held console would sell more than 115 million units, by far the most in home gaming history.
The hand held electric VSR drill is the most common drilling machine.
The Battle Axe
You should be able to. Most Second Hand stores now only take console games though. PC games can be annoying to sell second hand.
There are many sources with information on the Milton Bradley Company's Microvision game console and its release date. The most trusted site, Wikipedia, says that it was released in November of 1979.