I can bet you it's incompetence. They failed upwards. Sure, protocol is great and universal, but connector is atrocious and it has nothing to do with cost. Few points in favor of this hypothesis:
Plastic inside of the connector was initially black. Why chose hard to see color? Go with something easier to see;
Connector is perfectly rectangular and only distinguishing feature they made hard to see. Don't make ti symmetrical if it's not reversible, basic design principle;
Connector is perfectly rectangular making it difficult to insert. There's a reason why most connectors have rounded corners, they are self-correcting, even TypeC does this;
They made various different connector types but pushed for the only one with these issues. No one ever had doubts how type B or mini B or micro B go in.
Initially, the plastic inside the connector was white. They started to use black to denote USB2.0 devices, and USB2.0 rapidly became the standard. They at least tried to do something similar with blue plastic with USB3.0.
It's basically the only example I can think of where the plug and socket are rotationally symmetrical without also being reversible. That's the kind of thing where I ask "did you test this before you shipped it?" Thirty years later we're still plagued by the damn thing.
Right you are. Completely forgot about that. That said, I don't think USB1 was a standard for too long. If I remember correctly it went to 2.0 pretty fast.
If you had Macs, USB 1 was around a lot earlier, and really only good for peripherals and HID for a long time. FireWire and external SCSI drives were necessary because USB 1 wasn’t even viable for anything beyond external floppy drives. USB2 was a boon to external drives and bigger thumb drives, but took a while to arrive at the time.
I don't think I had anything with USB1 in it. Even the early Pentium machines had USB2.
I built a Pentium 2 in 1998 and needed a separate pci card to add usb 1.1 (which was what most early Usb was) USB2 came out in 2000. By then I was ready to upgrade the motherboard and the next one had USB built in, but I can’t remember if it was usb 2 or not, since that might have been late 99
I can't remember either, it's been a while. :)
Also a male USB 2 plug fits perfectly into a RJ45 slot :-/
In my days of tech support, I've seen multiple people plugging their USB printer cable into the network slot of their computer and it's a perfect fit so they were always convinced they didn't do anything wrong...
That's clearly a design flaw while all other connectors have distinct sizes.
Never heard of people plugging USB into LAN, but now that you mention it they are the same size. Luckily all the contacts are shielded.
I've done it myself when feeling the back of a pc and trying to get away without looking. I've been doing IT support since high school.
Way back before USB, joysticks had a DIN-25 connector that was identical to the MIDInetwork connector.
I blindly plugged my brand new MS Force Feedback joystick into the MIDInetwork port behind my miditower (yes I'm that old) and watched the magic smoke rise out of the joystick. That was not a good day to learn about plugs. The network carries 50 volts or something. Stick wasn't happy.
Strange. I always thought they were the exact same port. Because most of the time you would need a sound card to plug in a joystick. And nowadays I can't use my MS Force Feedback because all the USB adaptors don't implement all of the MIDI stuff the joystick needs to run the force feedback.
Oh you are right, I misremembered: what actually happened was that I was indeed going for the MIDI port of my SoundBlaster card but found a matching socket in my networrk card!
I will update my comment to correct this.
My girlfriend works in IT at a school so I asked if she's encountered this too. She said "all the time, they're right next to each other" she also added that a lot of people put their thin charging cables into the headphone jack breaking their laptops. And that for some of them they "fit better" in that jack than the one it's meant to go in.
You mean USB Type-B, right?
No one ever had doubts how type B or mini B or micro B go in.
I agree with most of your post, but micro B is a step too far. That fucking plug was always inserted with the following procedure:
Try to plug it in.
Flip the side and try to plug it in again.
Flip it again because you had the right damn side the first time.
Always, always, always.
Well, if nothing else it's easier to than type A.
Hindsight is 20/20. You're raising every issue with the original USB plug, then proceed to highlight how they addressed these issues going forward.
You're describing inexperience and calling it incompetence.
AFAIK the real predecessor to USB was Serial cables and those were an absolute shit show. USB set out to create a more usable interface with a lower profile and cheaper cost. In many ways the minor flaws in USB becoming common gripes is USB becoming a victim of its own success. I don't think they originally set out to become a power charging standard so the frequency at which devices were plugged in increased over time .
At least serial cables weren't symmetric, although just barely. AT and PS/2 cables (or any DIN) were much more of a pain for me to plug in blind.
I don't even know that I would call it inexperience. I just think a major part of the first pass was selling the idea of USB. You can design a perfect cable, plug, and protocol, it doesn't mean anyone will use it. Most investors don't know much about the technical details of a product. They do, however, understand the price. If you're trying to make a difference in the world, you don't always get to do it with style and quality.
No one ever had doubts how type B or mini B or micro B go in.
How lucky you were to never have a device that had one of these upside-down.
Or a printer with the B connector rotated 90° to one side.
New question: why did it have rotational symmetry?
Because fuck you that's why
New question: Fuck me? 🥺
Cheaper. Any other questions?
Oversight
Considering the much higher cost of production then vs now, it makes complete sense. The economy of scale took care of that problem with time.
TL;DR: its cheaper that way,
And i value that decision
I can bet you it's incompetence. They failed upwards. Sure, protocol is great and universal, but connector is atrocious and it has nothing to do with cost. Few points in favor of this hypothesis:
Initially, the plastic inside the connector was white. They started to use black to denote USB2.0 devices, and USB2.0 rapidly became the standard. They at least tried to do something similar with blue plastic with USB3.0.
It's basically the only example I can think of where the plug and socket are rotationally symmetrical without also being reversible. That's the kind of thing where I ask "did you test this before you shipped it?" Thirty years later we're still plagued by the damn thing.
Right you are. Completely forgot about that. That said, I don't think USB1 was a standard for too long. If I remember correctly it went to 2.0 pretty fast.
If you had Macs, USB 1 was around a lot earlier, and really only good for peripherals and HID for a long time. FireWire and external SCSI drives were necessary because USB 1 wasn’t even viable for anything beyond external floppy drives. USB2 was a boon to external drives and bigger thumb drives, but took a while to arrive at the time.
I don't think I had anything with USB1 in it. Even the early Pentium machines had USB2.
I built a Pentium 2 in 1998 and needed a separate pci card to add usb 1.1 (which was what most early Usb was) USB2 came out in 2000. By then I was ready to upgrade the motherboard and the next one had USB built in, but I can’t remember if it was usb 2 or not, since that might have been late 99
I can't remember either, it's been a while. :)
Also a male USB 2 plug fits perfectly into a RJ45 slot :-/ In my days of tech support, I've seen multiple people plugging their USB printer cable into the network slot of their computer and it's a perfect fit so they were always convinced they didn't do anything wrong... That's clearly a design flaw while all other connectors have distinct sizes.
Never heard of people plugging USB into LAN, but now that you mention it they are the same size. Luckily all the contacts are shielded.
I've done it myself when feeling the back of a pc and trying to get away without looking. I've been doing IT support since high school.
Way back before USB, joysticks had a DIN-25 connector that was identical to the
MIDInetwork connector.I blindly plugged my brand new MS Force Feedback joystick into the
MIDInetwork port behind my miditower (yes I'm that old) and watched the magic smoke rise out of the joystick. That was not a good day to learn about plugs. The network carries 50 volts or something. Stick wasn't happy.edit: corrections! Here's a photo of the network card: https://i.imgur.com/fBJixkM.png
Strange. I always thought they were the exact same port. Because most of the time you would need a sound card to plug in a joystick. And nowadays I can't use my MS Force Feedback because all the USB adaptors don't implement all of the MIDI stuff the joystick needs to run the force feedback.
Oh you are right, I misremembered: what actually happened was that I was indeed going for the MIDI port of my SoundBlaster card but found a matching socket in my networrk card!
I will update my comment to correct this.
My girlfriend works in IT at a school so I asked if she's encountered this too. She said "all the time, they're right next to each other" she also added that a lot of people put their thin charging cables into the headphone jack breaking their laptops. And that for some of them they "fit better" in that jack than the one it's meant to go in.
You mean USB Type-B, right?
I agree with most of your post, but micro B is a step too far. That fucking plug was always inserted with the following procedure:
Always, always, always.
Well, if nothing else it's easier to than type A.
Hindsight is 20/20. You're raising every issue with the original USB plug, then proceed to highlight how they addressed these issues going forward.
You're describing inexperience and calling it incompetence.
AFAIK the real predecessor to USB was Serial cables and those were an absolute shit show. USB set out to create a more usable interface with a lower profile and cheaper cost. In many ways the minor flaws in USB becoming common gripes is USB becoming a victim of its own success. I don't think they originally set out to become a power charging standard so the frequency at which devices were plugged in increased over time .
At least serial cables weren't symmetric, although just barely. AT and PS/2 cables (or any DIN) were much more of a pain for me to plug in blind.
I don't even know that I would call it inexperience. I just think a major part of the first pass was selling the idea of USB. You can design a perfect cable, plug, and protocol, it doesn't mean anyone will use it. Most investors don't know much about the technical details of a product. They do, however, understand the price. If you're trying to make a difference in the world, you don't always get to do it with style and quality.
How lucky you were to never have a device that had one of these upside-down.
Or a printer with the B connector rotated 90° to one side.
New question: why did it have rotational symmetry?
Because fuck you that's why
New question: Fuck me? 🥺
Cheaper. Any other questions?
Oversight
Considering the much higher cost of production then vs now, it makes complete sense. The economy of scale took care of that problem with time.