hungarian
The phrase "left his signature on the Hungarian QWERTZ keyboard" likely refers to a notable historical or cultural figure associated with Hungary. However, it is not a widely recognized phrase or event in history. If you meant a specific person or event, please provide more context for a more accurate answer.
You just type in your name, with a regular keyboard
ctrl + left arrow
Messaging> Settings (the left key) > Signature (#13)
10 Numeric Keypad on the left side of the keyboard..
By default its left Alt and Shift key.
Tulipan with the "a" with a slant accent slanting down left.
A qwerty keyboard is a standard keyboard. You may have used one to type your question. A qwerty keyboard has the letters Q W E R T and Y all in a row on the left side of the keyboard, typed by your left hand.
Liszt
The lowest key on a standard piano keyboard is the A0 key, which is the first key on the left side of the keyboard.
The first name of the keyboard was called "Qwerty", you can actually see those letters on the top left hand corner of your keyboard too.
left middle because its in the third row of letters from the left