Hi, this is Wayne again with a topic “Is PS/2 or USB Better for Keyboards and Mice?”.
One of the nice things about modern computing is the move towards one port for seemingly everything and yes, I know that audio monitors and Ethernet are major exceptions, but since the introduction of USB in 1996, we have come a long way from the days when it seemed Like every single device had its own specialized port, but even so, there’s one crucial situation where some folks still haven’t fully embraced USB, I’m talking keyboards and mice. While the vast majority of these input devices sold do connect via USB there’s actually still a different connection that some people still use the venerable ps2 port. So why do some people still prefer these round green and purple 90s? Throw backs well, although both ps2 and USB seem to do the same thing: connect a keyboard or Mouse to your computer. There are a number of significant differences in how they work that make them still seem relevant. Even on high-end motherboards, you see a USB keyboard or Mouse connection works by pulling your device, so in the computer equivalent of our me there yet many times per second, your computer essentially asks your keyboard or mouse hey what you doing, what you doing? What’S it doing, and the keyboard or mouse will then respond by saying, for example, nothing moving to the left having my deeky pushed down or strangling my owner. Ps2 devices, on the other hand, work by sending interrupts to the system.
So, instead of waiting around for the computer to ask about its current state, the ps/2 protocol allows your keyboard or mouse to actively interrupt whatever your CPU is doing to tell the computer what’s happening, and this might sound potentially inefficient, but because modern CPUs run at millions Or even billions of cycles per second you’d, never notice a slowdown. So it’s for this reason that some enthusiasts claim that ps2 has less perceptible latency, which should theoretically make response times quicker in games and ps2 also supports true and key rollover, meaning that the system will register as many keys as you can push down at once. There are USB keyboards that also advertise this functionality, but this is usually done by emulating multiple keyboards, which can limit how many additional input devices you can connect by requiring special software or by suffering from compatibility issues at boot time, because ps2 is a dedicated interface.
Just for keyboards and mice, ps2 devices don’t have weird issues where your computer doesn’t recognize them properly in the BIOS or before windows loads drivers, as can happen occasionally with the USB gadgets Wow. Well, that’s a lot of benefits. Long live ps2 right well hold on. In reality, the virtually certain to work level of compatibility is about.
It’S only real-world benefit for most people. Even many competitive gamers have a pint that, whatever enhanced responsiveness they get from ps2 is basically imperceptible with factors like key switch type being much more important for a competitive edge and ps2 has other limitations as well. It wasn’t designed to be electrically hot swappable and on older hardware, trying to swap out a keyboard mouse can make it not work until you, reboot or even worse, actually damage your equipment and not only that, since they weren’t meant to be unplugged and plugged back in Frequently, it is easy to bend or even break the little pins at the end of the cable, so in short, ps2 connectors take up more space and simply aren’t as tough as their USB counterparts.
So unless you have a very specific need for ps2, IT technicians still love them. There’S really no reason to fear missing out on anything. If you just go with a USB keyboard, assuming of course that you don’t have a classic model M keyboard that uses it or you know – maybe just a major old-school IO fetish for like those mmm giant printer ports that we all know and tolerate tunnel bear VPN Lets you tunnel to 20 different countries allowing you to browse the internet and use online services as though you’re in a different country, but Linus VPNs are hard to use port configurations and blab. No, it’s actually super simple tunnel. Bear is available for iOS Android, PC and Mac.
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