1000 and above

1 to 10 transistors

10 to 100 transistors

100 to 1000 transistors

Large Scale Integration (LSI)

Small Scale Integration (SSI)

Medium Scale Integration (MSI)

Very Large Scale Integration (VLSI)

Step by step method

Sensory test method

Trial and Error method

Logical approach method

Pin No.2

Pin No.3

Pin No.4

Pin No.5

LM 320

LM 340

IC 7905

IC 7812