KEYBOARD ADAPTOR

PURPOSE:To prevent the generation of unintended key entry by depressing a specific control key to lock keys and applying an identification (ID) character string optionally formed by each user to release the key lock. CONSTITUTION:A specific control key code is applied to a keyboard adaptor 12 to execute key lock. In order to unlock the once locked keyboard, an ID character string optionally formed by each user is applied to the keyboard. Namely, each user applies a specific control key code to lock the keyboard 11 and registers an ID character string unlock the locked keyboard. Thereby, key depression is invalidated when a third person does not know the ID character string. Even when keys are depressed in error or key entry is intended, the key input can not be accepted.