Connect any and all of it with an alligator clip and you have an input device.

FORBES: Makey Makey Hits $568,106 and 11,124 Consumers Said Yes

Formed seemingly from a single block of Lucite, the new mouse looks more like a drop of mercury than an input device.

CNN: Review: Apple Pro Mouse

With an input device that allows players physically to interact with games, the Wii has been yet another runaway success, selling almost as many consoles as the Xbox 360 and Playstation 3 combined.

WSJ: Playing the Fool

On the shelf today is this application for an "Input device, system and method, " which as mundane as that sounds, actually appears quite the contrary.

ENGADGET

"Many cars on the road today do not feature an auxiliary input or Bluetooth connection for a mobile device, " said Robert Acker, VP and GM of Aha by Harman.

ENGADGET: Griffin adds Aha by Harman to its iTrip Auto in-car FM transmitter

The new Z-Base sound bars offer two analog audio inputs, one optical (toslink) digital input, one coaxial digital input - plus a front panel 3.5mm analog stereo input for convenient connection of an iPod or other portable audio device.

ENGADGET: ZVOX intros three new Z-Base models, lowers the pricing soundbar

In the past, we've made no secret about the fact that we prefer using Windows 8 with some sort of touch input device, but it's still nice to see Lenovo adding an extra option for folks who prefer keyboard shortcuts.

ENGADGET: Lenovo ThinkPad Twist review: an old form factor gets new life with Windows 8

Fortunately, Pioneer was thoughtful enough to include an auxiliary audio input on both units, so 4900 owners can still plug in and play whatever audio device takes their fancy.

ENGADGET: Pioneer announces in-car AVH-P4900 / 5900DVD entertainment systems