The digital data making up an image is stored in a file. The raw digital information for an image takes up a considerable amount of space. For example a 10 by 8 inch colour print scanned at 600 dpi (dots per inch) will result in about 85.5 Mb (Megabytes) of raw data.
Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.
  A covalent bond is a chemical bond â¦ formed by the sharing of one or more electrons, especially pairs of electrons, between atoms. Covalent bonding: the electronegativity difference between bonded atoms is very small Ionic bonding: the electronegativity difference between bonded atoms is important.