Frequently Asked Questions on PS/2 Ports
Is it possible to plug in or add a PS/2 device while the computer is already on?
PS/2 ports again do not possess the capability of hot-plugging. One should be careful while connecting or disconnecting the PS/2 devices as it can harm the hardware if connected or disconnected while the computer is on. There is need to note that when dealing with PS/2 connections, the computer ought to be turned off   before changes are made.
What causes the failure of my PS/2 keyboard/mouse to function when I connect it?
In a situation where the PS/2 device is not recognized then check to see if the connectors are properly plugged and there is no bending of the pins. Also, the connection should be done when the computer is not on. If this does not work, look for BIOS settings and see to it that the PS/2 ports are active and then restart the computer. Turning it off and plugging it into another port is also a good way of ascertaining whether the port in question has a problem or the PS/2 device.
What is the usefulness of old ports like PS/2 ports in today’s computers?
Although USB is now usually in use displacing PS/2 ports, the PS/2 ports are still in the current generations systems at times necessitating old hardware support. On the basis of low latency and possibility of the n-key rollover some enthusiasts and professionals prefer to use PS / 2 keypads.
What is better or preferable a PS/2 keyboard or the USB keyboard?
Some of the PS/2 keyboards have the capability of full n-key rollover, which implies that several keys maybe pressed concurrently at a time and none of them will be ignored. It is beneficial for gaming and some professional usages. Also, PS/2 keyboards often have a short response time better than the USB one so it will be comfortable to type with it.
What is PS/2 Port?
The PS/2 port is an interfacing technology essentially used to connect keyboards and mouse to a computer. First developed by IBM in 1987 following their PS/2 line of PCs, this interface succeeded in becoming an industry standard through the 1990s and on into the first decade of the current millennium.
Although USB interfaces are widely used in contemporary systems and interfaces, there are still systems with PS/2 ports, especially in systems based on legacy hardware. The article sums up the basic information concerning the PS/2 port, definitions of basic terms vital for working with the port, the stages of attaching/disconnecting, and key problem-solving.