Small scale integrated circuit (SSI): 10- 100 components or 1- 10 logic gates.

Medium scale integrated circuit (MSI): 100- 1000 elements or 10- 100 logic gates.

LSI: 10 3- 10 5 elements or 100- 10000 logic gates.

VLSI: 10 6- 10 7 elements or 10000 or more logic gates.

VLSI: 10 7- 10 9 elements.

Large scale integrated circuit (GSI): 10 9 or more components.