Connection state confirmation system and method for expansion un

Details Connection state confirmation system and method for expansion un Connection state confirmation system and method for expansion un

1991-05-31

1994-12-27

Coleman, Eric

Boots, shoes, and leggings

3642851, 3642802, 3642803, 3642372, 364DIG1, 395575, G06F 130

Patent

active

053773578

ABSTRACT:
An expansion unit has a connector for docking a portable computer. A value of a specific pin of the connector is set in a connection identification register arranged in the expansion unit. When the portable computer is started, it reads the content of the identification register, and checks if a resume mode is set. When it is determined that the expansion unit is connected, and the resume mode is set, a message indicating that the expansion unit is connected is displayed on a display device for a predetermined period of time.

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