"Boombox" portable audio system (model M-90)

"Walkman" Portable Audio Cassette Player (model TPS-L2 )

VoicePoint Audio Teleconferencing Unit (model AEC-40)

Portable Stereo Headphones (model MDR-3L2)

"Discman" Portable Compact Disc Player (model D-50)

bärbar dator, dator, Typ/Model 8573-121, IBM, IBM Personal System /2 Model P70 386

My Landscape M-15-90

A study on adaptable system model and its application to desktop publishing system

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