35
votes
10answers
8k views

Why did early telephones use a rotary dial instead of 10 individual buttons?

I was watching a video of little kids trying to figure out how to use a rotary phone, and it was not immediately clear to any of them how the rotary mechanism was supposed to work. That got me ...
2
votes
3answers
120 views

Is there a standard for the positioning of the elevator control buttons?

I've always wondered why elevator control buttons are found where they are. For example, the following image shows the elevator control buttons positioned on the right side. The way I see it, ...
2
votes
2answers
163 views

public transit bus stop and door buttons

Not directly software related, I wonder about UX design in public transit busses. In Germany, some time ago there was a simple system in public transit busses: If the bus was quite empty, and no one ...
8
votes
5answers
531 views

Volume controls: Why is left down and right up?

I see a lot of people discuss the order of buttons (e.g., should OK be on the left and cancel on the right? or submit button on the left or right?) but something that I wonder: Why do volume ...
4
votes
1answer
191 views

Is there any attempt to standardize a “cancel” action in elevator buttons?

I live in a country where only a few (I've heard of 2 or 3) elevators has the option to toggle back a pressed button in order to cancel the request. Of course, I'm waiting for all elevator buttons ...
71
votes
9answers
6k views

Why is the “Record” icon always round and usually red?

I've been wondering why the symbol for 'record' is universally (AFAIK - has anyone seen exceptions?) a circle and usually red. Cameras, VCRs, voice recorders, smartphones, web apps... I've seen cases ...
113
votes
14answers
8k views

Who needs an external on/off Wi-Fi button?

It puzzles me that there are Laptops which are shipped with external physical Wi-Fi buttons. I see no real use of it, but it might have a historical explanation?! The only time one notice the external ...
81
votes
7answers
7k views

What reason could Nintendo have had for putting the A and B buttons the wrong way round?

When Nintendo brought out it's first game system, the NES, it had a controller with four buttons: Select Start A B However, somewhere, a designer, in their infinite wisdom, decided that the A and ...
7
votes
4answers
4k views

Why did Google opt-out of hardware buttons for Nexus devices?

Are there any real UX reasons to remove hardware buttons from Android Nexus devices? In above Nexus 4 the bottom part is wasted space - won't adding buttons like menu/back/home make it more ...
16
votes
5answers
720 views

Why do most dashboards use capital words?

Most car manufacturers seem to use ALL CAPS for the interiors's buttons and switches, at least when they are not using symbols. Example: They even use capitals for things that are not even ...
32
votes
9answers
3k views

Why don't most elevator panels let you unselect?

We've all seen it in the movies where a kid will push all the buttons in an elevator. We've all likely done it - accidentally hit the wrong floor. There's no unselect after you select a floor in an ...
6
votes
8answers
377 views

Order of physical controls: volume down, volume up, mute

My speaker has 3 physical buttons in this order: volume down volume up mute I find the order quite illogical, I would expect: volume up volume down mute Is there any convention on the ...
331
votes
20answers
18k views

Why do people clear the screen multiple times when using a calculator?

I've noticed that most people when using a real or a virtual calculator, they hit the Clear button multiple times when clearing the screen (even though hitting it once is enough), so I started ...
12
votes
3answers
686 views

What is the reason for Concave round buttons in Elevators

What is the reason many elevators have concave shaped buttons. Like this: Any special reason behind this?