Signal tracer Signal tracer A signal tracer is a piece of electronic test equipment used to troubleshoot radio and other electronic circuitry. Usually a very simple device, it normally provides an amplifier, and a loudspeaker, often battery-powered and packaged into a small, hand-held test probe. An optional diode detector is usually also provided, allowing the detection of amplitude-modulated signals. The technician injects a test signal into the device under test. Then, by using the signal tracer, the tech can follow the signal through the various circuits of the radio receiver. So long as the signal can be heard, the circuitry up to
Word processor (electronic device) was WordPerfect. It had more than 50% of the worldwide market as late as 1995, but by 2000 Microsoft Word had up to 95% market share. MacWrite, Microsoft Word, and other word processing programs for the bit-mapped Apple Macintosh screen, introduced in 1984, were probably the first true WYSIWYG word processors to become known to many people until the introduction of Microsoft Windows. Dedicated word processors eventually became museum pieces. Word processor (electronic device) A word processor is an electronic device or computer software application that performs the task of composing, editing, formatting, and printing of documents. The word processor