alphanumeric indicator
1Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …
2Computer keyboard — A key being pressed on a computer keyboard. In computing, a keyboard is a typewriter style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper… …
3QR code — for the URL of the English Wikipedia Mobile main page A QR code (abbreviated from Quick Response code) is a type of matrix barcode (or two dimensional code) first designed for the automotive industry. More recently, the system has become popular… …
4TRS-80 Color Computer — 16k TRS 80 Color Computer 1 Developer Tandy Corporation Manufacturer Motorola Release date 1980 …
5UK railway signalling — The railway signalling systems used across the majority of the United Kingdom rail network use lineside signals to advise the driver of the status of the section of track ahead. Most lineside signals are in colour light form, but a significant… …
6List of Renault engines — Engines used by French automaker Renault SA have historically been referenced in technical specifications along two distinct systems: * a purely numeric system used from the origins of the company until the mid 1980s * an alphanumeric system in… …
7Software versioning — is the process of assigning either unique version names or unique version numbers to unique states of computer software. Within a given version number category (major, minor), these numbers are generally assigned in increasing order and… …
8Keyboard (computing) — In computing, a keyboard is an input device partially modelled after the typewriter keyboard which uses an arrangement of buttons, or keys which act as electronic switches. A keyboard typically has characters engraved or printed on the keys, and… …
9Enclosed alphanumerics — An enclosed alphanumeric or circled alphanumeric (for example, Ⓣ) is a typographical symbol of an alphanumeric within a circle. The meaning of enclosed may also be extended to bracketed , like in ⒣, and other not closed enclosures. In Unicode… …
10British railway signals — Modern British signalling is based on a two, three and four aspect colour light system using non permissive block rules. It is a basic progression of the original semaphore signalling that can still be found on many secondary lines. Colour light… …
