The document introduces virtual keyboards, which use sensor technology and artificial intelligence to allow users to type on any surface like a regular keyboard. Virtual keyboards project a keyboard image that users can type on, and the software recognizes the keys. They are compact and allow typing anywhere, but require practice and are more expensive than traditional keyboards. Virtual keyboards may be used with smartphones, PDAs, games and as TV remotes.

1. WELCOME

2. PRESENTATION ON “ VIRTUAL KEYBORD” PUSHPALATHA

4. The microprocessor and controller circuitry of a keyboard. A look at the key matrix.

6. Virtual keyboard used in PDA’s The Virtual Keyboard uses light to project a full-sized computer keyboard onto almost any surface, and disappears when not in use. Used with Smart Phones and PDAs, it provides a practical way to do email, word processing and spreadsheet tasks, allowing the user to leave the laptop computer at home.

8. HOW DOES IT WORKS

15. PUSHPALATHA