Keyboardhelp.net shows several ways to create international accent marks, diacriticals, special symbols and math terms for the QWERTY keyboard, MS Windows, and Macintosh on laptops, tablets and phones. Charts list the ALT key codes (best for infrequent use) and html codes. The international English keyboard is best for those who are used to the qwerty keyboard and use various accent marks often. The specific language keyboards are useful for those who are familiar with them. Links to related resources and a few favorite, but uncommon, computer tips are also provided.