In this example w ill interface the PS/2 port to a PS/2 keyboard, also known as

an AT keyboard. The example will not apply to the newer USB keyboards, or to the

older, obsolete XT keyboard. Keyboards contain their own microprocessors that

continually scan the keys and then send the resulting key pressings to the host – in our

case through the PS/2 port.-In this example we will interface the PS/2 port to a PS/2 keyboard, also known as

an AT keyboard. The example will not apply to the newer USB keyboards, or to the

older, obsolete XT keyboard. Keyboards contain their own microprocessors that

continually scan the keys and then send the resulting key pressings to the host – in our

case through the PS/2 port.