41. Dot matrix printers are generally frowned on today : the printed letters look relatively rough edged.42. Passenger information systems were updated at the same time and now use dot matrix display screens. 43. The dot matrix printer was not very robust as its chassis was made entirely of plastic. 44. For example, it is occasionally used to describe the print head motion of certain dot matrix printers. 45. The machine came with a dot matrix printer, but, I told the seller to keep the printer. 46. While laser and inkjet have dropped down in price quite drastically, dot matrix has actually gone up. 47. Dot matrix line only shows 11 characters.48. Almost any dot matrix printer will do, 49. A dot matrix print head consists of a series of metal pins arranged in a vertical row. 50. The dot matrix display unit, now a mainstay, was first seen in a game called Checkpoint in 1990.
