DynaBook J-3100SS

This was the world's first A4 binder size notebook personal computer, marketed by Toshiba in 1989. Greater compactness (310(W) x 254(D) x 44(H)) and lighter weight (2.7kg) were achieved by surface mount technology,LSI based on super-integration technology,logic circuits as gate arrays, and a thin liquid crystal display with backlight.