Hi all...
for a really long long time I was thinking on start building stuff with Arduino, but didn't know what..
now i got into a problem that i think it would be great to solve with Arduino, as my first project..
the problem :
I have PC (for gaming mostly), laptop (for my education mostly), laptop(from work) and one wireless keyboard mouse...
the solution :
attaching the usb of the keyboard mouse to three machines, and to be able to choose which machine they will control 
... Arduino ...
another feature that would be nice to have is a screen, that would indicate to which machine I'm connected to at any given moment ...
i suppose that the program should be stored on board after i write it, and the power source external (not plugged in to any of the machines)...
I'm not able to figure which components i need in order to build this thing.
please help 
thanks in advance
P.S.
I'm software developer...
I suggest using two 4 to 1 de-multiplexers. Then, you can control the connection which includes one OFF state.
I can help you. Inbox me for more info and Help
Regards
SDA