Caret confused with other chevron-shaped characters, such as or , which may occasionally be called carets, too. The caret was originally and continues to be used in handwritten form as a proofreading mark to indicate where a punctuation mark, word, or phrase should be inserted into a document. The term comes from the Latin , "it lacks", from , "to lack; to be separated from; to be free from". The caret symbol is written below the line of text for a line-level punctuation mark, such as a comma, or above the line as an inverted caret (cf. ) for a higher
Reading machine Reading machine A reading machine is a piece of assistive technology that allows blind people to access printed materials. It scans text, converts the image into text by means of optical character recognition and uses a speech synthesizer to read out what it has found. The first prototype of reading machine, called optophone, was developed by Dr. Edmund Fournier d'Albe of Birmingham University in 1913. Five vertically-aligned photo-detectors were used to scan a line of printed text. Each cell generated a different tone (G, C, D, E, G8) when detecting black print, so that each character was associated with a