Monitor – It is similar to television giving a soft copy output. Earlier monochrome or Colour CRT monitors were used but now LED & LCD. It is divided into rows and columns called resolution like 640 x 480, etc. with intersection of row and column is called a pixel (Picture Element).
Printers – It produces hard copy output on paper and is classified as impact & non-impact.
Impact Printers – They print on paper by impacting the paper like dot matrix printer.
Dot matrix printer– It prints dots onto page and available in 80 and 132 columns.
Non- Impact Printers– They print on paper by not impacting the paper like laser or inkjet printer.
Ink jet Printer It uses nozzles which spray jets of ink onto the paper from ink cartridge.
Laser Printer It is expensive with faster and high print quality. They directly scan laser beam on the roller which fuses ink to the paper.
Plotters – It plots big size drawings on to the sheets for engineering drawings, maps, etc.
