- Keyboard: this has keys that allow a user to enter data into a computer. It's application is Word Processing.
- Mouse: to move, it uses devices that emit and sense light to detect the movement. It's application is Menu Selection.
- MICR: it stands for magnetic ink character recognition. This can read texts printed with magnetized ink. It's application is Bank.
- OMR: Optical Mark Recognition can sense hand-drawn marks such as small shapes. It's application is correction of multiple-choice questions.
- Impact Printers: these are printers that make noise. Example dot-matrix printer.
- Non-Impact Printers: these are printers that don't make a lot of noise. Example Ink-jet Printer.
- Dot-Matrix Printer: this is a printer that produces images with a print head striking mechanism.
- Ink-Jet Printer: this forms letters by spraying tiny drops of liquid inkon a piece of paper.
- Vector: it is when the image is made up of lines.
- Raster: it is when the image is made up of dots.
dot-matrix printer keyboard
mouse
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