Keyboard layout are named after the first several letters that take over the 'QWERTY' row on the Latin keyboard. They differ by where a few of the letters are placed. For example, some have Cyrillic 'B' (which is pronounced 'V') on the Latin 'W' key (after the German transliteration of B), while others have it on the Latin 'V' key. The images of AATSEEL "Student", YaZhERT (яжерт) and YaWERT (яверт) are shown on this page. There are also variations within these variations; for example the Mac OS X Phonetic Russian layout is YaShERT but differs in placement of ж and э. Windows
Dvorak Simplified Keyboard were used inside the company and even sold commercially. The Apple IIe had a keyboard ROM that translated keystrokes into characters. The ROM contained both QWERTY and Dvorak patterns, but the QWERTY pattern was enabled by default. A modification could be made by pulling out the ROM, bending up four pins, soldering a resistor between two pins, soldering two others to a pair of wires connected to a DIP switch, which was installed in a pre-existing hole in the back of the machine, then plugging the modified ROM back in its socket. The "hack" was reversible and did no damage.