Noun
qwertz
(computing, typography) A style of keyboard layout used in some European countries.
QWERTZ
Alternative letter-case form of qwertz
Czech QWERTY layout differs from QWERTZ in that the characters (e.g. @$& and others) missing from the Czech keyboard are accessible with AltGr on the same keys where they are located on an American keyboard. Source: Internet
In Czech QWERTZ keyboard the position of these characters accessed through AltGr differs. Source: Internet