On Friday, Sharp Electronics UK Ltd launched the PC-8501, a 20MHz 80386-based laptop computer with the new generation active matrix, thin film transistor, colour liquid crystal diode display: the 12.5 by 16 by 4 machine weighs in at a hefty 15 lbs and has 2Mb expandable to 10Mb on the system board, 3.5 1.44Mb floppy and 100Mb hard disk; mains-powered, and costs UKP8,000.