Keyboard layout 10 includes its own implementation of a mnemonic QWERTY-based input method for Russian, which does not fully rely on assigning a key to every Russian letter, but uses the sh, sc, ch, ya (ja), yu (ju), ye (je), yo (jo) combinations to input ш, щ, ч, я, ю, э, and ё respectively. Virtual (on-screen) Russian keyboards allow entering Cyrillic directly in a browser without activating the system layout. This virtual keyboard offers YaZhERT (яжерт) variant. Another virtual keyboard supports both traditional ("MS Windows" and Typewriter) and some phonetic keyboard layouts, including AATSEEL "Student", Mac OS X Phonetic Russian layout and
QWERTY version, but some features are identical to the United Kingdom version: The Vietnamese keyboard layout is an extended Latin QWERTY layout. The letters Ă, Â, Ê, and Ô are found on what would be the number keys – on the US English keyboard, with – producing the tonal marks (grave accent, hook, tilde, acute accent and dot below, in that order), producing Đ, producing the đồng sign (₫) when not shifted, and brackets () producing Ư and Ơ. EurKEY is a free and open source US-based layout which provides easy access to many diacritics of European languages as well as