A while ago all computers had PS2 ports where you could connect all the peripherals that helped you operate your computer including the mouse, keyboard, printer and suff like that. So these devices that had to be plugged in there had to be compatible and had a similar design to fit the port. You certainly remember round plugs at the end of the mouse or keyboard cord.



But now they are replaced by the USB ports that allow a wider range of devices to be connected to your computer. But it seems that some people still own some computers with PS2 ports, even though they use modern equipment designed for USB. That is why producers have thought of a trick: to build an adapter that allows devices designed for USB plugging to also fit the PS2 ports. It is called USB to PS2 adaper, as you can imagine. Not all computer mice have it, but you can still find some.

It is harder for wireless mice especially because they belong to the latest generation and they are very rarely provided with this adaper. However I could find a very nice ergonomic computer mouse that is both wireless and PS2 compatible and offers the ergonomic design as a bonus : the wireless Logitech Trackman mouse.

This is an optical mouse and at the same time a trackball, so it combines two important features that ensure a very good quality tracking with minimum effort, as you don't have to move your whole hand, but only one finger when operating it. Besides, the trackball offers incredible accuracy and precision, which is very helpful if you are an artist or use Photoshop a lot.

The wireless Logitech Trackman mouse is compatible with both USB and PS2 ports , making it perfect for both older and newer computers. Because it is a wireless mouse it also has a small receiver that plugs into a port on your computer and gets the radio frequency signals it sends in order to make its position known. The five buttons beside the trackball that are positioned so as to be operated mainly bu your thumb help you navigate around Windows and the web easily.

Too bad it is only designed for the right handed people. It works with two AA batteries that can last for months. It is compatible with any PC non Mac and supports any version of Windows later than 1998. Because the buttons can be reprogrammed and because of the wireless feature it needs some software and drivers that you either install from the CD purchased together with this mouse or download for free from the official web site belonging to Logitech.

Besides all the features offered by the many programmable buttons and the trackball, this Logitech mouse is also a very good ergonomic device, as you can operate it very easily, offers comfort to your hand and wrist and a thumb rest. It sells for a fair price between $30-45 and if you are interested in buying it you can order here and here right now. Good luck!