track density
91Montpelier, Indiana —   City   Montpelier, Indiana Nickname(s): O …
92Washington Metro — Not to be confused with Washington Metropolitan Area. Washington Metro Overview Type …
93Magnetic stripe card — An example of the reverse side of a typical credit card: Green circle #1 labels the Magnetic stripe A magnetic stripe card is a type of card capable of storing data by modifying the magnetism of tiny iron based magnetic particles on a band of… …
94Cab signalling — is a railroad safety system that communicates track status information to the train cab (driving position), where the engineer or driver can see the information. The simplest systems display the trackside signal aspect (typically, green, yellow… …
95Blu-ray Disc — Blue ray redirects here. For the fish of the same name, see Neoraja caerulea. Blu ray Disc Media type …
96Automatic Block Signal — Basic Automatic Block Signals = Automatic Block Signal, or ABS, systems consist of a series of signals that govern blocks of track between the signals. The signals are automatically activated by the conditions of the block beyond the signal.… …
97Compact Disc — CD redirects here. For other uses, see CD (disambiguation). Not to be confused with DVD. Compact disc The readable surface of a Compact Disc incl …
98Corona — This article is about the astronomical term. For other uses, see Corona (disambiguation). During a total solar eclipse, the solar corona can be seen with the naked eye. A corona is a type of plasma atmosphere of the Sun or other celestial body,… …
99Tamil Nadu — தமிழ் நாடு   State   Tamil Nadu Emblem …
100Barcode — For the taxonomic method, see DNA barcoding. A UPC A barcode symbol A barcode is an optical machine readable representation of data, which shows data about the object to which it attaches. Originally barcodes represented data by varying the… …
