1.In an impact matrix printer, it may also be termed a “needle” or a “wire” and in an electrosensitive printer or thermal matrix printer, an “electrode”.
2.In the early 1980s, most printing was done on dot matrix printers, which used printed dots to form shapes, the while legible were blocky and imprecise.
3.The walkman, the floppy disks, the dot matrix printer and the VHS, the video home system, these are some of the inventions of the 1970s that have become obsolete with the passage of time and the progress of technology.