International Business Machines Corporation

Roger L Cox

James Robert Lewis

Francis James Canova, Jr

David J Allard

Jose L Rivero

Raymond L Yee

Charles S Lanier

Byron K Tiller

Julie F Goodwin

Debra A Johnson

Neal A Osborn

Bradley J DeBauche

Daniel Ming-Te Hsieh

Brent A Beatty

William Villafana

Wayne P Whitley

Robert Bedford Ferrier

Jean Luter Stout

Connie Yudip Au

James Christian Wulf

Michael J DeLoye

Russell Stephen Padgett

Thomas T Murakami

Anthony F Corkell

Robert L Myers

An option attach connector has a first indicator bit combination that alerts the device that a public switched telephone network connection has been made to it. The presence of the first indicator bit combination is a signal to the device that telephone, FAX, and E-MAIL communications applications are to be conducted over a PSTN link. The presence of the first indicator bit combination invokes a stored computer program to provide appropriate connections between the PSTN link and the telephone, FAX, and modem hardware in the device. The connections are made by an audio multiplexer that receives control signals from the system CPU, while executing the stored computer program. The program determines the communications application selected by the user and selectively configures the PSTN link to be connected to the either the ear piece and microphone for voice communications, or to the FAX/modem for FAX communications, or to the modem alone for E-MAIL communications. The absence of the option attach connector invokes a default indicator bit combination that alerts the device that a cellular telephone network connection is desired by the user. The presence of the default indicator bit combination is a signal to the device that telephone, FAX, and E-mail communications applications are to be conducted over a cellular network.

Selective reconfiguration method and apparatus in a multiple application

This invention relates to personal computers, and more particularly to personal computer power supplies for supplying electrical power to electrically operated components which manipulate or store digital data. The power supply has a controllable component for responding to the presence and absence of a low voltage direct current electrical signal by enabling and disabling the supply of electrical power to the data processing and storage components, and a signal generator circuit operatively connected with the controllable component and with an alternating current electrical main supply for controllably deriving from the main supply a low voltage direct current signal for delivery to the controllable component, whereby a user of the microcomputer may control energization of the electrically powered data processing and storage components by controlling the application of the low voltage direct current signal from the signal generator circuit to the controllable component.

Personal computer power supply

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Plantation, FL, United States of America

Roger L Cox