Merika pontikia, oxi synh8ws ta pio f8hna, exoyn ena diakopth apo katw shmeiwmeno `2/3'. Merikes fores ayto mporei na einai `PC/MS'. Se ayth thn periptwsh h ru8mish `2' einai gia katastash Microsoft 2 koympiwn, kai h `3' gia katastash MouseSystems 3 koympiwn. O `PC/MS' diakopths einai ligo pio poluplokos. 8a breite pi8anws oti h ru8mish `MS' einai gia Microsoft, kai h `PC' einai gia MouseSystems. Isws breite oti h ru8mish `PC' perigrafetai ws katastash ps/2 , alla 8a prepei na kanei kai gia MouseSystems epishs. An exete tetoio pontiki, mporeite na balete ton diakopth sto `3' h `PC', balte tis ry8miseis MouseSystems sto XConfigs (blepete parakatw) kai to pontiki 8a leitoyrgei teleia sthn katastash 3 koympiwn.