Why does Indian Railways still use the same dot-matrix printer?
A dot matrix printer is still used today because it serves a very specific purpose and does so very, very cheap for the thing it does. 1. Multiple pages printing: There are no printers that are cheap and can print on multiple papers at the same time. The dot matrix printer can be used to print one original and 3 carbon copies of the same document at the same time. This makes printing and keeping track of duplicates, triplicates and quadruplicates very easy. For example, the reservation chart that is stuck outside the train, has multiple copies. One copy goes to the head office, one to the ticket checker, one on the platform and one the train. The multiple copies are printed simultaneously and it is because of the dot matrix printer. The Indian management system and businesses rely heavily on duplicates and triplicates. Trust me when I say that. 2. Versatile printing: There is no limitation on the paper dimension you can print on with the dot matrix printer. According to my