… can use one keyboard and mouse to control multiple connected computers with a few extra options in the paid version. Control multiple computers from a single mouse and keyboard. ShareMouse lets you use one keyboard and mouse one multiple computers …
Two Computers and one Mouse It also includes mouse sharing, allowing you to operate two computers with one mouse. Unlike a physical mouse switch, ShareMouse doesn't require you to press any button. Instead, just move the mouse to the computer you wish More about ShareMouse
… keyboard, mouse and clipboard between PCs. Synergy is a freeware (formerly, new versions are commercial) software that allows you to use a single keyboard and mouse between multiple computers. The application can control the keyboard, mouse, or trackpad …
and mouse with remote machines using this fast, approachable non-intrusive application with different configuration rules Synergy combines your desktop devices together into one cohesive experience. It's software for sharing your mouse and keyboard More about Synergy