Orbit x-y Ball Tracker Xerox Star Mystery mouse - wheels instead of a ball Hawley Mark II X063X Lisa mouse Gibson light pen Logitech P7 Mouse Systems Optical M1 Mac M0100 serial Tablet with stylus Microsoft 'Dove bar' Internet scroll mouse Kensington Trackball notebook Trackball joystick 2-button mouse scrolling 2-button mouse NeXT mouse Kidz mouse Macintosh mouse

oldmouse.com

oldmouse.com

oldmouse.com

USB Mouse Connectors and Adapters

In 1996 the USB, Universal Serial Bus, became available, gradually replacing most of the other connectors for computer mice and other peripherals. It is hot swappable and capable of daisy chaining

USB to PS/2 adapters.
Have a few USB to PS/2 adapters. Any ideas how to repurpose them?

USB logo.
USB standard logo on computer ports, mouses and other peripherals

USB to PS/2 adapters.
Back and front views of two gender-bender USB to PS/2 adapters. Beware: effecting a gender bender by adding this USB to PS/2 adapter to get a PS/2 mouse to plug into a USB port is a good way to fry an old mouse.

Just because an adapter fits on a mouse's plug didn't always mean it will work plugged into a matching port.

Two PS/2 connectors on two PS/2 to USB adapters.
The PS/2 end on two PS/2 to USB adapters

Two PS/2 connectors on two PS/2 to USB adapters.
Two PS/2 end on two PS/2 to USB adapters

Two PS/2 to USB adapters of opposite genders.
Two PS/2 to USB adapters of opposite genders.

A USB to PS/2 adapter.
It appears you could plug a USB mouse into this adapter to enable it for a PS/2 port. It must have worked on some mouse that was bought en masse. Or else it didn't work, which might explain the big tub of unused green adapters.