Lt543 common cathode display datasheet ibm

The most common and arguably the most established form of biometrics for area access and denial systems is the fingerprint scanner. It should come as no surprise to anyone that each person on Earth has a largely unique fingerprint, evidenced by the fact we have been using fingerprints as a method of criminal identification for decades. The Industry Council for Electronic Equipment Recycling (ICER) was founded in 1992 by a consortium of companies including household names such as Boots, CL, IBM, BT and the BPF. It aims to oversee the development of recycling facilities for electrical and electronic equipment in the UK. Cathode ray tubes are still used as display devices in television sets, video monitors, and oscilloscopes, although they are being replaced by LCDs and other flat-panel displays. A specialized form of the electron tube, the magnetron, is the source of microwave energy in microwave ovens and some radar systems.