Everything has a button

[Industrial Miner]

My brain doesn't have buttons. Neither do wireless laptop-chargers.

[Wudzerivovneach]

Unlike most human beings, I have a button. I'd prefer it never be pressed, though; bad things could happen.

Light switches (usually) don't have buttons. They're, well, switches. As in, levers, but smaller. Many more technical machines rely on switches/levers to control things rather than buttons, because buttons tend to be finicky in many ways. Combine that finickiness with, say, a jetliner or a nuclear reactor, and you could have problems.

[NightKev]

"Lever" has no inherent size definition. Also, switches are levers.

[Wudzerivovneach]

Technically, yes. But the way I've always seen it is, the larger a switch/lever is, the more likely it is to be called a lever, whereas the smaller, the more likely to be called a switch. Not just by me; I've noticed most people think the same way.

[warpspeed10]

I built my 3D printer without any buttons, so I installed a gigantic flashing red safety button... because I could.

[Jorcer]

Would you consider the wheel to be technological? At the time it would have been considered a machine and a traditional wheel has no buttons.

[maespinn]

What kind of button is this a trigger?

[TheTechnicLord]

Many devices do not have buttons. Most lab apparatus, including Bunsen and alcohol burners, do not include buttons. Neither do cell phone chargers.

[Viktor_Berg]

My analog watch doesn't have a button. It doesn't even have a switch. Just a dial that can be used to adjust the time on it.

[Lethosos]

*pushes belly button*

*burps loudly*

Obviously, we're more advanced than a wheel to get a silly button all on our own. :)

[Richs_Yard]

My speakers have nobs, but not buttons

[TheBytemaster]

Does the Microsoft kinect count as a button? If so than I can control my PC without buttons.